28195520

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:178

約数の個数: 112

約数和(自身を含む): 73078848

約数和(自身を除く): 44883328

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 71, 73, 80, 85, 136, 142, 146, 160, 170, 272, 284, 292, 320, 340, 355, 365, 544, 568, 584, 680, 710, 730, 1088, 1136, 1168, 1207, 1241, 1360, 1420, 1460, 2272, 2336, 2414, 2482, 2720, 2840, 2920, 4544, 4672, 4828, 4964, 5183, 5440, 5680, 5840, 6035, 6205, 9656, 9928, 10366, 11360, 11680, 12070, 12410, 19312, 19856, 20732, 22720, 23360, 24140, 24820, 25915, 38624, 39712, 41464, 48280, 49640, 51830, 77248, 79424, 82928, 88111, 96560, 99280, 103660, 165856, 176222, 193120, 198560, 207320, 331712, 352444, 386240, 397120, 414640, 440555, 704888, 829280, 881110, 1409776, 1658560, 1762220, 2819552, 3524440, 5639104, 7048880, 14097760, 28195520]

約数ペア:

[(1, 28195520), (2, 14097760), (4, 7048880), (5, 5639104), (8, 3524440), (10, 2819552), (16, 1762220), (17, 1658560), (20, 1409776), (32, 881110), (34, 829280), (40, 704888), (64, 440555), (68, 414640), (71, 397120), (73, 386240), (80, 352444), (85, 331712), (136, 207320), (142, 198560), (146, 193120), (160, 176222), (170, 165856), (272, 103660), (284, 99280), (292, 96560), (320, 88111), (340, 82928), (355, 79424), (365, 77248), (544, 51830), (568, 49640), (584, 48280), (680, 41464), (710, 39712), (730, 38624), (1088, 25915), (1136, 24820), (1168, 24140), (1207, 23360), (1241, 22720), (1360, 20732), (1420, 19856), (1460, 19312), (2272, 12410), (2336, 12070), (2414, 11680), (2482, 11360), (2720, 10366), (2840, 9928), (2920, 9656), (4544, 6205), (4672, 6035), (4828, 5840), (4964, 5680), (5183, 5440)]