20640630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 51565248

約数和(自身を除く): 30924618

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 97, 123, 173, 194, 205, 246, 291, 346, 410, 485, 519, 582, 615, 865, 970, 1038, 1230, 1455, 1730, 2595, 2910, 3977, 5190, 7093, 7954, 11931, 14186, 16781, 19885, 21279, 23862, 33562, 35465, 39770, 42558, 50343, 59655, 70930, 83905, 100686, 106395, 119310, 167810, 212790, 251715, 503430, 688021, 1376042, 2064063, 3440105, 4128126, 6880210, 10320315, 20640630]

約数ペア:

[(1, 20640630), (2, 10320315), (3, 6880210), (5, 4128126), (6, 3440105), (10, 2064063), (15, 1376042), (30, 688021), (41, 503430), (82, 251715), (97, 212790), (123, 167810), (173, 119310), (194, 106395), (205, 100686), (246, 83905), (291, 70930), (346, 59655), (410, 50343), (485, 42558), (519, 39770), (582, 35465), (615, 33562), (865, 23862), (970, 21279), (1038, 19885), (1230, 16781), (1455, 14186), (1730, 11931), (2595, 7954), (2910, 7093), (3977, 5190)]