425680840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26407}}^1$

素因数の和:26462

約数の個数: 64

約数和(自身を含む): 1064770560

約数和(自身を除く): 639089720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 26407, 52814, 105628, 132035, 211256, 264070, 343291, 528140, 686582, 818617, 1056280, 1373164, 1637234, 1716455, 2746328, 3274468, 3432910, 4093085, 6548936, 6865820, 8186170, 10642021, 13731640, 16372340, 21284042, 32744680, 42568084, 53210105, 85136168, 106420210, 212840420, 425680840]

約数ペア:

[(1, 425680840), (2, 212840420), (4, 106420210), (5, 85136168), (8, 53210105), (10, 42568084), (13, 32744680), (20, 21284042), (26, 16372340), (31, 13731640), (40, 10642021), (52, 8186170), (62, 6865820), (65, 6548936), (104, 4093085), (124, 3432910), (130, 3274468), (155, 2746328), (248, 1716455), (260, 1637234), (310, 1373164), (403, 1056280), (520, 818617), (620, 686582), (806, 528140), (1240, 343291), (1612, 264070), (2015, 211256), (3224, 132035), (4030, 105628), (8060, 52814), (16120, 26407)]