19535120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 50353920

約数和(自身を除く): 30818800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 281, 316, 395, 440, 562, 632, 790, 869, 880, 1124, 1264, 1405, 1580, 1738, 2248, 2810, 3091, 3160, 3476, 4345, 4496, 5620, 6182, 6320, 6952, 8690, 11240, 12364, 13904, 15455, 17380, 22199, 22480, 24728, 30910, 34760, 44398, 49456, 61820, 69520, 88796, 110995, 123640, 177592, 221990, 244189, 247280, 355184, 443980, 488378, 887960, 976756, 1220945, 1775920, 1953512, 2441890, 3907024, 4883780, 9767560, 19535120]

約数ペア:

[(1, 19535120), (2, 9767560), (4, 4883780), (5, 3907024), (8, 2441890), (10, 1953512), (11, 1775920), (16, 1220945), (20, 976756), (22, 887960), (40, 488378), (44, 443980), (55, 355184), (79, 247280), (80, 244189), (88, 221990), (110, 177592), (158, 123640), (176, 110995), (220, 88796), (281, 69520), (316, 61820), (395, 49456), (440, 44398), (562, 34760), (632, 30910), (790, 24728), (869, 22480), (880, 22199), (1124, 17380), (1264, 15455), (1405, 13904), (1580, 12364), (1738, 11240), (2248, 8690), (2810, 6952), (3091, 6320), (3160, 6182), (3476, 5620), (4345, 4496)]