142669640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 329799600

約数和(自身を除く): 187129960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 173, 212, 265, 346, 389, 424, 530, 692, 778, 865, 1060, 1384, 1556, 1730, 1945, 2120, 3112, 3460, 3890, 6920, 7780, 9169, 15560, 18338, 20617, 36676, 41234, 45845, 67297, 73352, 82468, 91690, 103085, 134594, 164936, 183380, 206170, 269188, 336485, 366760, 412340, 538376, 672970, 824680, 1345940, 2691880, 3566741, 7133482, 14266964, 17833705, 28533928, 35667410, 71334820, 142669640]

約数ペア:

[(1, 142669640), (2, 71334820), (4, 35667410), (5, 28533928), (8, 17833705), (10, 14266964), (20, 7133482), (40, 3566741), (53, 2691880), (106, 1345940), (173, 824680), (212, 672970), (265, 538376), (346, 412340), (389, 366760), (424, 336485), (530, 269188), (692, 206170), (778, 183380), (865, 164936), (1060, 134594), (1384, 103085), (1556, 91690), (1730, 82468), (1945, 73352), (2120, 67297), (3112, 45845), (3460, 41234), (3890, 36676), (6920, 20617), (7780, 18338), (9169, 15560)]