20542270

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 23780930

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 70, 98, 106, 113, 226, 245, 265, 343, 371, 490, 530, 565, 686, 742, 791, 1130, 1582, 1715, 1855, 2597, 3430, 3710, 3955, 5194, 5537, 5989, 7910, 11074, 11978, 12985, 18179, 25970, 27685, 29945, 36358, 38759, 41923, 55370, 59890, 77518, 83846, 90895, 181790, 193795, 209615, 293461, 387590, 419230, 586922, 1467305, 2054227, 2934610, 4108454, 10271135, 20542270]

約数ペア:

[(1, 20542270), (2, 10271135), (5, 4108454), (7, 2934610), (10, 2054227), (14, 1467305), (35, 586922), (49, 419230), (53, 387590), (70, 293461), (98, 209615), (106, 193795), (113, 181790), (226, 90895), (245, 83846), (265, 77518), (343, 59890), (371, 55370), (490, 41923), (530, 38759), (565, 36358), (686, 29945), (742, 27685), (791, 25970), (1130, 18179), (1582, 12985), (1715, 11978), (1855, 11074), (2597, 7910), (3430, 5989), (3710, 5537), (3955, 5194)]