28675920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1$

素因数の和:150

約数の個数: 240

約数和(自身を含む): 111100032

約数和(自身を除く): 82424112

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 101, 104, 105, 112, 120, 130, 140, 156, 168, 169, 182, 195, 202, 208, 210, 240, 260, 273, 280, 303, 312, 336, 338, 364, 390, 404, 420, 455, 505, 507, 520, 546, 560, 606, 624, 676, 707, 728, 780, 808, 840, 845, 910, 1010, 1014, 1040, 1092, 1183, 1212, 1313, 1352, 1365, 1414, 1456, 1515, 1560, 1616, 1680, 1690, 1820, 2020, 2028, 2121, 2184, 2366, 2424, 2535, 2626, 2704, 2730, 2828, 3030, 3120, 3380, 3535, 3549, 3640, 3939, 4040, 4056, 4242, 4368, 4732, 4848, 5070, 5252, 5460, 5656, 5915, 6060, 6565, 6760, 7070, 7098, 7280, 7878, 8080, 8112, 8484, 9191, 9464, 10140, 10504, 10605, 10920, 11312, 11830, 12120, 13130, 13520, 14140, 14196, 15756, 16968, 17069, 17745, 18382, 18928, 19695, 20280, 21008, 21210, 21840, 23660, 24240, 26260, 27573, 28280, 28392, 31512, 33936, 34138, 35490, 36764, 39390, 40560, 42420, 45955, 47320, 51207, 52520, 55146, 56560, 56784, 63024, 68276, 70980, 73528, 78780, 84840, 85345, 91910, 94640, 102414, 105040, 110292, 119483, 136552, 137865, 141960, 147056, 157560, 169680, 170690, 183820, 204828, 220584, 238966, 256035, 273104, 275730, 283920, 315120, 341380, 358449, 367640, 409656, 441168, 477932, 512070, 551460, 597415, 682760, 716898, 735280, 819312, 955864, 1024140, 1102920, 1194830, 1365520, 1433796, 1792245, 1911728, 2048280, 2205840, 2389660, 2867592, 3584490, 4096560, 4779320, 5735184, 7168980, 9558640, 14337960, 28675920]

約数ペア:

[(1, 28675920), (2, 14337960), (3, 9558640), (4, 7168980), (5, 5735184), (6, 4779320), (7, 4096560), (8, 3584490), (10, 2867592), (12, 2389660), (13, 2205840), (14, 2048280), (15, 1911728), (16, 1792245), (20, 1433796), (21, 1365520), (24, 1194830), (26, 1102920), (28, 1024140), (30, 955864), (35, 819312), (39, 735280), (40, 716898), (42, 682760), (48, 597415), (52, 551460), (56, 512070), (60, 477932), (65, 441168), (70, 409656), (78, 367640), (80, 358449), (84, 341380), (91, 315120), (101, 283920), (104, 275730), (105, 273104), (112, 256035), (120, 238966), (130, 220584), (140, 204828), (156, 183820), (168, 170690), (169, 169680), (182, 157560), (195, 147056), (202, 141960), (208, 137865), (210, 136552), (240, 119483), (260, 110292), (273, 105040), (280, 102414), (303, 94640), (312, 91910), (336, 85345), (338, 84840), (364, 78780), (390, 73528), (404, 70980), (420, 68276), (455, 63024), (505, 56784), (507, 56560), (520, 55146), (546, 52520), (560, 51207), (606, 47320), (624, 45955), (676, 42420), (707, 40560), (728, 39390), (780, 36764), (808, 35490), (840, 34138), (845, 33936), (910, 31512), (1010, 28392), (1014, 28280), (1040, 27573), (1092, 26260), (1183, 24240), (1212, 23660), (1313, 21840), (1352, 21210), (1365, 21008), (1414, 20280), (1456, 19695), (1515, 18928), (1560, 18382), (1616, 17745), (1680, 17069), (1690, 16968), (1820, 15756), (2020, 14196), (2028, 14140), (2121, 13520), (2184, 13130), (2366, 12120), (2424, 11830), (2535, 11312), (2626, 10920), (2704, 10605), (2730, 10504), (2828, 10140), (3030, 9464), (3120, 9191), (3380, 8484), (3535, 8112), (3549, 8080), (3640, 7878), (3939, 7280), (4040, 7098), (4056, 7070), (4242, 6760), (4368, 6565), (4732, 6060), (4848, 5915), (5070, 5656), (5252, 5460)]