217677980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:543

約数の個数: 96

約数和(自身を含む): 520732800

約数和(自身を除く): 303054820

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 89, 92, 115, 130, 178, 230, 260, 299, 356, 409, 445, 460, 598, 818, 890, 1157, 1196, 1495, 1636, 1780, 2045, 2047, 2314, 2990, 4090, 4094, 4628, 5317, 5785, 5980, 8180, 8188, 9407, 10235, 10634, 11570, 18814, 20470, 21268, 23140, 26585, 26611, 36401, 37628, 40940, 47035, 53170, 53222, 72802, 94070, 106340, 106444, 122291, 133055, 145604, 182005, 188140, 244582, 266110, 364010, 473213, 489164, 532220, 611455, 728020, 837223, 946426, 1222910, 1674446, 1892852, 2366065, 2445820, 3348892, 4186115, 4732130, 8372230, 9464260, 10883899, 16744460, 21767798, 43535596, 54419495, 108838990, 217677980]

約数ペア:

[(1, 217677980), (2, 108838990), (4, 54419495), (5, 43535596), (10, 21767798), (13, 16744460), (20, 10883899), (23, 9464260), (26, 8372230), (46, 4732130), (52, 4186115), (65, 3348892), (89, 2445820), (92, 2366065), (115, 1892852), (130, 1674446), (178, 1222910), (230, 946426), (260, 837223), (299, 728020), (356, 611455), (409, 532220), (445, 489164), (460, 473213), (598, 364010), (818, 266110), (890, 244582), (1157, 188140), (1196, 182005), (1495, 145604), (1636, 133055), (1780, 122291), (2045, 106444), (2047, 106340), (2314, 94070), (2990, 72802), (4090, 53222), (4094, 53170), (4628, 47035), (5317, 40940), (5785, 37628), (5980, 36401), (8180, 26611), (8188, 26585), (9407, 23140), (10235, 21268), (10634, 20470), (11570, 18814)]