221726570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1487}}^1$

素因数の和:1575

約数の個数: 64

約数和(自身を含む): 455970816

約数和(自身を除く): 234244246

約数列:

[1, 2, 5, 10, 13, 26, 31, 37, 62, 65, 74, 130, 155, 185, 310, 370, 403, 481, 806, 962, 1147, 1487, 2015, 2294, 2405, 2974, 4030, 4810, 5735, 7435, 11470, 14870, 14911, 19331, 29822, 38662, 46097, 55019, 74555, 92194, 96655, 110038, 149110, 193310, 230485, 275095, 460970, 550190, 599261, 715247, 1198522, 1430494, 1705589, 2996305, 3411178, 3576235, 5992610, 7152470, 8527945, 17055890, 22172657, 44345314, 110863285, 221726570]

約数ペア:

[(1, 221726570), (2, 110863285), (5, 44345314), (10, 22172657), (13, 17055890), (26, 8527945), (31, 7152470), (37, 5992610), (62, 3576235), (65, 3411178), (74, 2996305), (130, 1705589), (155, 1430494), (185, 1198522), (310, 715247), (370, 599261), (403, 550190), (481, 460970), (806, 275095), (962, 230485), (1147, 193310), (1487, 149110), (2015, 110038), (2294, 96655), (2405, 92194), (2974, 74555), (4030, 55019), (4810, 46097), (5735, 38662), (7435, 29822), (11470, 19331), (14870, 14911)]