87261720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:226

約数の個数: 256

約数和(自身を含む): 329978880

約数和(自身を除く): 242717160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 61, 65, 70, 78, 84, 91, 104, 105, 120, 122, 130, 131, 140, 156, 168, 182, 183, 195, 210, 244, 260, 262, 273, 280, 305, 312, 364, 366, 390, 393, 420, 427, 455, 488, 520, 524, 546, 610, 655, 728, 732, 780, 786, 793, 840, 854, 910, 915, 917, 1048, 1092, 1220, 1281, 1310, 1365, 1464, 1560, 1572, 1586, 1703, 1708, 1820, 1830, 1834, 1965, 2135, 2184, 2379, 2440, 2562, 2620, 2730, 2751, 3144, 3172, 3406, 3416, 3640, 3660, 3668, 3930, 3965, 4270, 4585, 4758, 5109, 5124, 5240, 5460, 5502, 5551, 6344, 6405, 6812, 7320, 7336, 7860, 7930, 7991, 8515, 8540, 9170, 9516, 10218, 10248, 10920, 11004, 11102, 11895, 11921, 12810, 13624, 13755, 15720, 15860, 15982, 16653, 17030, 17080, 18340, 19032, 20436, 22008, 22204, 23790, 23842, 23973, 25545, 25620, 27510, 27755, 31720, 31964, 33306, 34060, 35763, 36680, 39955, 40872, 44408, 47580, 47684, 47946, 51090, 51240, 55020, 55510, 55937, 59605, 63928, 66612, 68120, 71526, 79910, 83265, 95160, 95368, 95892, 102180, 103883, 110040, 111020, 111874, 119210, 119865, 133224, 143052, 159820, 166530, 167811, 178815, 191784, 204360, 207766, 222040, 223748, 238420, 239730, 279685, 286104, 311649, 319640, 333060, 335622, 357630, 415532, 447496, 476840, 479460, 519415, 559370, 623298, 666120, 671244, 715260, 727181, 831064, 839055, 958920, 1038830, 1118740, 1246596, 1342488, 1430520, 1454362, 1558245, 1678110, 2077660, 2181543, 2237480, 2493192, 2908724, 3116490, 3356220, 3635905, 4155320, 4363086, 5817448, 6232980, 6712440, 7271810, 8726172, 10907715, 12465960, 14543620, 17452344, 21815430, 29087240, 43630860, 87261720]

約数ペア:

[(1, 87261720), (2, 43630860), (3, 29087240), (4, 21815430), (5, 17452344), (6, 14543620), (7, 12465960), (8, 10907715), (10, 8726172), (12, 7271810), (13, 6712440), (14, 6232980), (15, 5817448), (20, 4363086), (21, 4155320), (24, 3635905), (26, 3356220), (28, 3116490), (30, 2908724), (35, 2493192), (39, 2237480), (40, 2181543), (42, 2077660), (52, 1678110), (56, 1558245), (60, 1454362), (61, 1430520), (65, 1342488), (70, 1246596), (78, 1118740), (84, 1038830), (91, 958920), (104, 839055), (105, 831064), (120, 727181), (122, 715260), (130, 671244), (131, 666120), (140, 623298), (156, 559370), (168, 519415), (182, 479460), (183, 476840), (195, 447496), (210, 415532), (244, 357630), (260, 335622), (262, 333060), (273, 319640), (280, 311649), (305, 286104), (312, 279685), (364, 239730), (366, 238420), (390, 223748), (393, 222040), (420, 207766), (427, 204360), (455, 191784), (488, 178815), (520, 167811), (524, 166530), (546, 159820), (610, 143052), (655, 133224), (728, 119865), (732, 119210), (780, 111874), (786, 111020), (793, 110040), (840, 103883), (854, 102180), (910, 95892), (915, 95368), (917, 95160), (1048, 83265), (1092, 79910), (1220, 71526), (1281, 68120), (1310, 66612), (1365, 63928), (1464, 59605), (1560, 55937), (1572, 55510), (1586, 55020), (1703, 51240), (1708, 51090), (1820, 47946), (1830, 47684), (1834, 47580), (1965, 44408), (2135, 40872), (2184, 39955), (2379, 36680), (2440, 35763), (2562, 34060), (2620, 33306), (2730, 31964), (2751, 31720), (3144, 27755), (3172, 27510), (3406, 25620), (3416, 25545), (3640, 23973), (3660, 23842), (3668, 23790), (3930, 22204), (3965, 22008), (4270, 20436), (4585, 19032), (4758, 18340), (5109, 17080), (5124, 17030), (5240, 16653), (5460, 15982), (5502, 15860), (5551, 15720), (6344, 13755), (6405, 13624), (6812, 12810), (7320, 11921), (7336, 11895), (7860, 11102), (7930, 11004), (7991, 10920), (8515, 10248), (8540, 10218), (9170, 9516)]