1639380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 4656960

約数和(自身を除く): 3017580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 307, 356, 445, 534, 614, 890, 921, 1068, 1228, 1335, 1535, 1780, 1842, 2670, 3070, 3684, 4605, 5340, 6140, 9210, 18420, 27323, 54646, 81969, 109292, 136615, 163938, 273230, 327876, 409845, 546460, 819690, 1639380]

約数ペア:

[(1, 1639380), (2, 819690), (3, 546460), (4, 409845), (5, 327876), (6, 273230), (10, 163938), (12, 136615), (15, 109292), (20, 81969), (30, 54646), (60, 27323), (89, 18420), (178, 9210), (267, 6140), (307, 5340), (356, 4605), (445, 3684), (534, 3070), (614, 2670), (890, 1842), (921, 1780), (1068, 1535), (1228, 1335)]