1688869260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{721739}}^1$

素因数の和:721767

約数の個数: 72

約数和(自身を含む): 5516980560

約数和(自身を除く): 3828111300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 721739, 1443478, 2165217, 2886956, 3608695, 4330434, 6495651, 7217390, 8660868, 9382607, 10826085, 12991302, 14434780, 18765214, 21652170, 25982604, 28147821, 32478255, 37530428, 43304340, 46913035, 56295642, 64956510, 84443463, 93826070, 112591284, 129913020, 140739105, 168886926, 187652140, 281478210, 337773852, 422217315, 562956420, 844434630, 1688869260]

約数ペア:

[(1, 1688869260), (2, 844434630), (3, 562956420), (4, 422217315), (5, 337773852), (6, 281478210), (9, 187652140), (10, 168886926), (12, 140739105), (13, 129913020), (15, 112591284), (18, 93826070), (20, 84443463), (26, 64956510), (30, 56295642), (36, 46913035), (39, 43304340), (45, 37530428), (52, 32478255), (60, 28147821), (65, 25982604), (78, 21652170), (90, 18765214), (117, 14434780), (130, 12991302), (156, 10826085), (180, 9382607), (195, 8660868), (234, 7217390), (260, 6495651), (390, 4330434), (468, 3608695), (585, 2886956), (780, 2165217), (1170, 1443478), (2340, 721739)]