90440260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{2081}}^1$

素因数の和:2184

約数の個数: 48

約数和(自身を含む): 198322992

約数和(自身を除く): 107882732

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 530, 820, 1060, 2081, 2173, 4162, 4346, 8324, 8692, 10405, 10865, 20810, 21730, 41620, 43460, 85321, 110293, 170642, 220586, 341284, 426605, 441172, 551465, 853210, 1102930, 1706420, 2205860, 4522013, 9044026, 18088052, 22610065, 45220130, 90440260]

約数ペア:

[(1, 90440260), (2, 45220130), (4, 22610065), (5, 18088052), (10, 9044026), (20, 4522013), (41, 2205860), (53, 1706420), (82, 1102930), (106, 853210), (164, 551465), (205, 441172), (212, 426605), (265, 341284), (410, 220586), (530, 170642), (820, 110293), (1060, 85321), (2081, 43460), (2173, 41620), (4162, 21730), (4346, 20810), (8324, 10865), (8692, 10405)]