287090320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{1049}}^1$

素因数の和:1384

約数の個数: 80

約数和(自身を含む): 731203200

約数和(自身を除く): 444112880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 311, 440, 622, 880, 1049, 1244, 1555, 2098, 2488, 3110, 3421, 4196, 4976, 5245, 6220, 6842, 8392, 10490, 11539, 12440, 13684, 16784, 17105, 20980, 23078, 24880, 27368, 34210, 41960, 46156, 54736, 57695, 68420, 83920, 92312, 115390, 136840, 184624, 230780, 273680, 326239, 461560, 652478, 923120, 1304956, 1631195, 2609912, 3262390, 3588629, 5219824, 6524780, 7177258, 13049560, 14354516, 17943145, 26099120, 28709032, 35886290, 57418064, 71772580, 143545160, 287090320]

約数ペア:

[(1, 287090320), (2, 143545160), (4, 71772580), (5, 57418064), (8, 35886290), (10, 28709032), (11, 26099120), (16, 17943145), (20, 14354516), (22, 13049560), (40, 7177258), (44, 6524780), (55, 5219824), (80, 3588629), (88, 3262390), (110, 2609912), (176, 1631195), (220, 1304956), (311, 923120), (440, 652478), (622, 461560), (880, 326239), (1049, 273680), (1244, 230780), (1555, 184624), (2098, 136840), (2488, 115390), (3110, 92312), (3421, 83920), (4196, 68420), (4976, 57695), (5245, 54736), (6220, 46156), (6842, 41960), (8392, 34210), (10490, 27368), (11539, 24880), (12440, 23078), (13684, 20980), (16784, 17105)]