28054260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:678

約数の個数: 144

約数和(自身を含む): 96620160

約数和(自身を除く): 68565900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 631, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1262, 1482, 1710, 1893, 2223, 2340, 2470, 2524, 2964, 3155, 3420, 3705, 3786, 4446, 4940, 5679, 6310, 7410, 7572, 8203, 8892, 9465, 11115, 11358, 11989, 12620, 14820, 16406, 18930, 22230, 22716, 23978, 24609, 28395, 32812, 35967, 37860, 41015, 44460, 47956, 49218, 56790, 59945, 71934, 73827, 82030, 98436, 107901, 113580, 119890, 123045, 143868, 147654, 155857, 164060, 179835, 215802, 239780, 246090, 295308, 311714, 359670, 369135, 431604, 467571, 492180, 539505, 623428, 719340, 738270, 779285, 935142, 1079010, 1402713, 1476540, 1558570, 1870284, 2158020, 2337855, 2805426, 3117140, 4675710, 5610852, 7013565, 9351420, 14027130, 28054260]

約数ペア:

[(1, 28054260), (2, 14027130), (3, 9351420), (4, 7013565), (5, 5610852), (6, 4675710), (9, 3117140), (10, 2805426), (12, 2337855), (13, 2158020), (15, 1870284), (18, 1558570), (19, 1476540), (20, 1402713), (26, 1079010), (30, 935142), (36, 779285), (38, 738270), (39, 719340), (45, 623428), (52, 539505), (57, 492180), (60, 467571), (65, 431604), (76, 369135), (78, 359670), (90, 311714), (95, 295308), (114, 246090), (117, 239780), (130, 215802), (156, 179835), (171, 164060), (180, 155857), (190, 147654), (195, 143868), (228, 123045), (234, 119890), (247, 113580), (260, 107901), (285, 98436), (342, 82030), (380, 73827), (390, 71934), (468, 59945), (494, 56790), (570, 49218), (585, 47956), (631, 44460), (684, 41015), (741, 37860), (780, 35967), (855, 32812), (988, 28395), (1140, 24609), (1170, 23978), (1235, 22716), (1262, 22230), (1482, 18930), (1710, 16406), (1893, 14820), (2223, 12620), (2340, 11989), (2470, 11358), (2524, 11115), (2964, 9465), (3155, 8892), (3420, 8203), (3705, 7572), (3786, 7410), (4446, 6310), (4940, 5679)]