156927705980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{560977}}^1$

素因数の和:561254

約数の個数: 48

約数和(自身を含む): 335886699456

約数和(自身を除く): 178958993476

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 197, 284, 355, 394, 710, 788, 985, 1420, 1970, 3940, 13987, 27974, 55948, 69935, 139870, 279740, 560977, 1121954, 2243908, 2804885, 5609770, 11219540, 39829367, 79658734, 110512469, 159317468, 199146835, 221024938, 398293670, 442049876, 552562345, 796587340, 1105124690, 2210249380, 7846385299, 15692770598, 31385541196, 39231926495, 78463852990, 156927705980]

約数ペア:

[(1, 156927705980), (2, 78463852990), (4, 39231926495), (5, 31385541196), (10, 15692770598), (20, 7846385299), (71, 2210249380), (142, 1105124690), (197, 796587340), (284, 552562345), (355, 442049876), (394, 398293670), (710, 221024938), (788, 199146835), (985, 159317468), (1420, 110512469), (1970, 79658734), (3940, 39829367), (13987, 11219540), (27974, 5609770), (55948, 2804885), (69935, 2243908), (139870, 1121954), (279740, 560977)]