25402000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{977}}^1$

素因数の和:1013

約数の個数: 80

約数和(自身を含む): 66214512

約数和(自身を除く): 40812512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 977, 1000, 1040, 1300, 1625, 1954, 2000, 2600, 3250, 3908, 4885, 5200, 6500, 7816, 9770, 12701, 13000, 15632, 19540, 24425, 25402, 26000, 39080, 48850, 50804, 63505, 78160, 97700, 101608, 122125, 127010, 195400, 203216, 244250, 254020, 317525, 390800, 488500, 508040, 635050, 977000, 1016080, 1270100, 1587625, 1954000, 2540200, 3175250, 5080400, 6350500, 12701000, 25402000]

約数ペア:

[(1, 25402000), (2, 12701000), (4, 6350500), (5, 5080400), (8, 3175250), (10, 2540200), (13, 1954000), (16, 1587625), (20, 1270100), (25, 1016080), (26, 977000), (40, 635050), (50, 508040), (52, 488500), (65, 390800), (80, 317525), (100, 254020), (104, 244250), (125, 203216), (130, 195400), (200, 127010), (208, 122125), (250, 101608), (260, 97700), (325, 78160), (400, 63505), (500, 50804), (520, 48850), (650, 39080), (977, 26000), (1000, 25402), (1040, 24425), (1300, 19540), (1625, 15632), (1954, 13000), (2000, 12701), (2600, 9770), (3250, 7816), (3908, 6500), (4885, 5200)]