745885620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{6269}}^1$

素因数の和:6945

約数の個数: 72

約数和(自身を含む): 2266304040

約数和(自身を除く): 1520418420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 661, 1322, 1983, 2644, 3305, 3966, 5949, 6269, 6610, 7932, 9915, 11898, 12538, 13220, 18807, 19830, 23796, 25076, 29745, 31345, 37614, 39660, 56421, 59490, 62690, 75228, 94035, 112842, 118980, 125380, 188070, 225684, 282105, 376140, 564210, 1128420, 4143809, 8287618, 12431427, 16575236, 20719045, 24862854, 37294281, 41438090, 49725708, 62157135, 74588562, 82876180, 124314270, 149177124, 186471405, 248628540, 372942810, 745885620]

約数ペア:

[(1, 745885620), (2, 372942810), (3, 248628540), (4, 186471405), (5, 149177124), (6, 124314270), (9, 82876180), (10, 74588562), (12, 62157135), (15, 49725708), (18, 41438090), (20, 37294281), (30, 24862854), (36, 20719045), (45, 16575236), (60, 12431427), (90, 8287618), (180, 4143809), (661, 1128420), (1322, 564210), (1983, 376140), (2644, 282105), (3305, 225684), (3966, 188070), (5949, 125380), (6269, 118980), (6610, 112842), (7932, 94035), (9915, 75228), (11898, 62690), (12538, 59490), (13220, 56421), (18807, 39660), (19830, 37614), (23796, 31345), (25076, 29745)]