81897400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2423}}^1$

素因数の和:2465

約数の個数: 72

約数和(自身を含む): 206270280

約数和(自身を除く): 124372880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 169, 200, 260, 325, 338, 520, 650, 676, 845, 1300, 1352, 1690, 2423, 2600, 3380, 4225, 4846, 6760, 8450, 9692, 12115, 16900, 19384, 24230, 31499, 33800, 48460, 60575, 62998, 96920, 121150, 125996, 157495, 242300, 251992, 314990, 409487, 484600, 629980, 787475, 818974, 1259960, 1574950, 1637948, 2047435, 3149900, 3275896, 4094870, 6299800, 8189740, 10237175, 16379480, 20474350, 40948700, 81897400]

約数ペア:

[(1, 81897400), (2, 40948700), (4, 20474350), (5, 16379480), (8, 10237175), (10, 8189740), (13, 6299800), (20, 4094870), (25, 3275896), (26, 3149900), (40, 2047435), (50, 1637948), (52, 1574950), (65, 1259960), (100, 818974), (104, 787475), (130, 629980), (169, 484600), (200, 409487), (260, 314990), (325, 251992), (338, 242300), (520, 157495), (650, 125996), (676, 121150), (845, 96920), (1300, 62998), (1352, 60575), (1690, 48460), (2423, 33800), (2600, 31499), (3380, 24230), (4225, 19384), (4846, 16900), (6760, 12115), (8450, 9692)]