19026920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 47355840

約数和(自身を除く): 28328920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 332, 415, 440, 521, 664, 830, 913, 1042, 1660, 1826, 2084, 2605, 3320, 3652, 4168, 4565, 5210, 5731, 7304, 9130, 10420, 11462, 18260, 20840, 22924, 28655, 36520, 43243, 45848, 57310, 86486, 114620, 172972, 216215, 229240, 345944, 432430, 475673, 864860, 951346, 1729720, 1902692, 2378365, 3805384, 4756730, 9513460, 19026920]

約数ペア:

[(1, 19026920), (2, 9513460), (4, 4756730), (5, 3805384), (8, 2378365), (10, 1902692), (11, 1729720), (20, 951346), (22, 864860), (40, 475673), (44, 432430), (55, 345944), (83, 229240), (88, 216215), (110, 172972), (166, 114620), (220, 86486), (332, 57310), (415, 45848), (440, 43243), (521, 36520), (664, 28655), (830, 22924), (913, 20840), (1042, 18260), (1660, 11462), (1826, 10420), (2084, 9130), (2605, 7304), (3320, 5731), (3652, 5210), (4168, 4565)]