7021900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 16498944

約数和(自身を除く): 9477044

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 43, 46, 50, 71, 86, 92, 100, 115, 142, 172, 215, 230, 284, 355, 430, 460, 575, 710, 860, 989, 1075, 1150, 1420, 1633, 1775, 1978, 2150, 2300, 3053, 3266, 3550, 3956, 4300, 4945, 6106, 6532, 7100, 8165, 9890, 12212, 15265, 16330, 19780, 24725, 30530, 32660, 40825, 49450, 61060, 70219, 76325, 81650, 98900, 140438, 152650, 163300, 280876, 305300, 351095, 702190, 1404380, 1755475, 3510950, 7021900]

約数ペア:

[(1, 7021900), (2, 3510950), (4, 1755475), (5, 1404380), (10, 702190), (20, 351095), (23, 305300), (25, 280876), (43, 163300), (46, 152650), (50, 140438), (71, 98900), (86, 81650), (92, 76325), (100, 70219), (115, 61060), (142, 49450), (172, 40825), (215, 32660), (230, 30530), (284, 24725), (355, 19780), (430, 16330), (460, 15265), (575, 12212), (710, 9890), (860, 8165), (989, 7100), (1075, 6532), (1150, 6106), (1420, 4945), (1633, 4300), (1775, 3956), (1978, 3550), (2150, 3266), (2300, 3053)]