64204720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25889}}^1$

素因数の和:25933

約数の個数: 40

約数和(自身を含む): 154097280

約数和(自身を除く): 89892560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 25889, 51778, 103556, 129445, 207112, 258890, 414224, 517780, 802559, 1035560, 1605118, 2071120, 3210236, 4012795, 6420472, 8025590, 12840944, 16051180, 32102360, 64204720]

約数ペア:

[(1, 64204720), (2, 32102360), (4, 16051180), (5, 12840944), (8, 8025590), (10, 6420472), (16, 4012795), (20, 3210236), (31, 2071120), (40, 1605118), (62, 1035560), (80, 802559), (124, 517780), (155, 414224), (248, 258890), (310, 207112), (496, 129445), (620, 103556), (1240, 51778), (2480, 25889)]