261570840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{128221}}^1$

素因数の和:128252

約数の個数: 64

約数和(自身を含む): 830878560

約数和(自身を除く): 569307720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 128221, 256442, 384663, 512884, 641105, 769326, 1025768, 1282210, 1538652, 1923315, 2179757, 2564420, 3077304, 3846630, 4359514, 5128840, 6539271, 7693260, 8719028, 10898785, 13078542, 15386520, 17438056, 21797570, 26157084, 32696355, 43595140, 52314168, 65392710, 87190280, 130785420, 261570840]

約数ペア:

[(1, 261570840), (2, 130785420), (3, 87190280), (4, 65392710), (5, 52314168), (6, 43595140), (8, 32696355), (10, 26157084), (12, 21797570), (15, 17438056), (17, 15386520), (20, 13078542), (24, 10898785), (30, 8719028), (34, 7693260), (40, 6539271), (51, 5128840), (60, 4359514), (68, 3846630), (85, 3077304), (102, 2564420), (120, 2179757), (136, 1923315), (170, 1538652), (204, 1282210), (255, 1025768), (340, 769326), (408, 641105), (510, 512884), (680, 384663), (1020, 256442), (2040, 128221)]