89800100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1031}}^1$

素因数の和:1125

約数の個数: 72

約数和(自身を含む): 213194688

約数和(自身を除く): 123394588

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 67, 100, 130, 134, 260, 268, 325, 335, 650, 670, 871, 1031, 1300, 1340, 1675, 1742, 2062, 3350, 3484, 4124, 4355, 5155, 6700, 8710, 10310, 13403, 17420, 20620, 21775, 25775, 26806, 43550, 51550, 53612, 67015, 69077, 87100, 103100, 134030, 138154, 268060, 276308, 335075, 345385, 670150, 690770, 898001, 1340300, 1381540, 1726925, 1796002, 3453850, 3592004, 4490005, 6907700, 8980010, 17960020, 22450025, 44900050, 89800100]

約数ペア:

[(1, 89800100), (2, 44900050), (4, 22450025), (5, 17960020), (10, 8980010), (13, 6907700), (20, 4490005), (25, 3592004), (26, 3453850), (50, 1796002), (52, 1726925), (65, 1381540), (67, 1340300), (100, 898001), (130, 690770), (134, 670150), (260, 345385), (268, 335075), (325, 276308), (335, 268060), (650, 138154), (670, 134030), (871, 103100), (1031, 87100), (1300, 69077), (1340, 67015), (1675, 53612), (1742, 51550), (2062, 43550), (3350, 26806), (3484, 25775), (4124, 21775), (4355, 20620), (5155, 17420), (6700, 13403), (8710, 10310)]