20054560

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 51356592

約数和(自身を除く): 31302032

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 73, 80, 85, 101, 136, 146, 160, 170, 202, 272, 292, 340, 365, 404, 505, 544, 584, 680, 730, 808, 1010, 1168, 1241, 1360, 1460, 1616, 1717, 2020, 2336, 2482, 2720, 2920, 3232, 3434, 4040, 4964, 5840, 6205, 6868, 7373, 8080, 8585, 9928, 11680, 12410, 13736, 14746, 16160, 17170, 19856, 24820, 27472, 29492, 34340, 36865, 39712, 49640, 54944, 58984, 68680, 73730, 99280, 117968, 125341, 137360, 147460, 198560, 235936, 250682, 274720, 294920, 501364, 589840, 626705, 1002728, 1179680, 1253410, 2005456, 2506820, 4010912, 5013640, 10027280, 20054560]

約数ペア:

[(1, 20054560), (2, 10027280), (4, 5013640), (5, 4010912), (8, 2506820), (10, 2005456), (16, 1253410), (17, 1179680), (20, 1002728), (32, 626705), (34, 589840), (40, 501364), (68, 294920), (73, 274720), (80, 250682), (85, 235936), (101, 198560), (136, 147460), (146, 137360), (160, 125341), (170, 117968), (202, 99280), (272, 73730), (292, 68680), (340, 58984), (365, 54944), (404, 49640), (505, 39712), (544, 36865), (584, 34340), (680, 29492), (730, 27472), (808, 24820), (1010, 19856), (1168, 17170), (1241, 16160), (1360, 14746), (1460, 13736), (1616, 12410), (1717, 11680), (2020, 9928), (2336, 8585), (2482, 8080), (2720, 7373), (2920, 6868), (3232, 6205), (3434, 5840), (4040, 4964)]