644589680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67709}}^1$

素因数の和:67746

約数の個数: 80

約数和(自身を含む): 1813544640

約数和(自身を除く): 1168954960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2380, 4760, 9520, 67709, 135418, 270836, 338545, 473963, 541672, 677090, 947926, 1083344, 1151053, 1354180, 1895852, 2302106, 2369815, 2708360, 3791704, 4604212, 4739630, 5416720, 5755265, 7583408, 8057371, 9208424, 9479260, 11510530, 16114742, 18416848, 18958520, 23021060, 32229484, 37917040, 40286855, 46042120, 64458968, 80573710, 92084240, 128917936, 161147420, 322294840, 644589680]

約数ペア:

[(1, 644589680), (2, 322294840), (4, 161147420), (5, 128917936), (7, 92084240), (8, 80573710), (10, 64458968), (14, 46042120), (16, 40286855), (17, 37917040), (20, 32229484), (28, 23021060), (34, 18958520), (35, 18416848), (40, 16114742), (56, 11510530), (68, 9479260), (70, 9208424), (80, 8057371), (85, 7583408), (112, 5755265), (119, 5416720), (136, 4739630), (140, 4604212), (170, 3791704), (238, 2708360), (272, 2369815), (280, 2302106), (340, 1895852), (476, 1354180), (560, 1151053), (595, 1083344), (680, 947926), (952, 677090), (1190, 541672), (1360, 473963), (1904, 338545), (2380, 270836), (4760, 135418), (9520, 67709)]