20196031960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{7207}}^1$

素因数の和:7565

約数の個数: 128

約数和(自身を含む): 51985825920

約数和(自身を除く): 31789793960

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 317, 340, 442, 520, 634, 680, 884, 1105, 1268, 1585, 1768, 2210, 2536, 3170, 4121, 4420, 5389, 6340, 7207, 8242, 8840, 10778, 12680, 14414, 16484, 20605, 21556, 26945, 28828, 32968, 36035, 41210, 43112, 53890, 57656, 70057, 72070, 82420, 93691, 107780, 122519, 140114, 144140, 164840, 187382, 215560, 245038, 280228, 288280, 350285, 374764, 468455, 490076, 560456, 612595, 700570, 749528, 936910, 980152, 1225190, 1401140, 1592747, 1873820, 2284619, 2450380, 2802280, 3185494, 3747640, 4569238, 4900760, 6370988, 7963735, 9138476, 11423095, 12741976, 15927470, 18276952, 22846190, 29700047, 31854940, 38838523, 45692380, 59400094, 63709880, 77677046, 91384760, 118800188, 148500235, 155354092, 194192615, 237600376, 297000470, 310708184, 388385230, 504900799, 594000940, 776770460, 1009801598, 1188001880, 1553540920, 2019603196, 2524503995, 4039206392, 5049007990, 10098015980, 20196031960]

約数ペア:

[(1, 20196031960), (2, 10098015980), (4, 5049007990), (5, 4039206392), (8, 2524503995), (10, 2019603196), (13, 1553540920), (17, 1188001880), (20, 1009801598), (26, 776770460), (34, 594000940), (40, 504900799), (52, 388385230), (65, 310708184), (68, 297000470), (85, 237600376), (104, 194192615), (130, 155354092), (136, 148500235), (170, 118800188), (221, 91384760), (260, 77677046), (317, 63709880), (340, 59400094), (442, 45692380), (520, 38838523), (634, 31854940), (680, 29700047), (884, 22846190), (1105, 18276952), (1268, 15927470), (1585, 12741976), (1768, 11423095), (2210, 9138476), (2536, 7963735), (3170, 6370988), (4121, 4900760), (4420, 4569238), (5389, 3747640), (6340, 3185494), (7207, 2802280), (8242, 2450380), (8840, 2284619), (10778, 1873820), (12680, 1592747), (14414, 1401140), (16484, 1225190), (20605, 980152), (21556, 936910), (26945, 749528), (28828, 700570), (32968, 612595), (36035, 560456), (41210, 490076), (43112, 468455), (53890, 374764), (57656, 350285), (70057, 288280), (72070, 280228), (82420, 245038), (93691, 215560), (107780, 187382), (122519, 164840), (140114, 144140)]