20197102544

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1\times {\mathrm{373}}^1$

素因数の和:868

約数の個数: 80

約数和(自身を含む): 40085559360

約数和(自身を除く): 19888456816

約数列:

[1, 2, 4, 8, 16, 97, 139, 194, 251, 278, 373, 388, 502, 556, 746, 776, 1004, 1112, 1492, 1552, 2008, 2224, 2984, 4016, 5968, 13483, 24347, 26966, 34889, 36181, 48694, 51847, 53932, 69778, 72362, 93623, 97388, 103694, 107864, 139556, 144724, 187246, 194776, 207388, 215728, 279112, 289448, 374492, 389552, 414776, 558224, 578896, 748984, 829552, 1497968, 3384233, 5029159, 6768466, 9081431, 10058318, 13013597, 13536932, 18162862, 20116636, 26027194, 27073864, 36325724, 40233272, 52054388, 54147728, 72651448, 80466544, 104108776, 145302896, 208217552, 1262318909, 2524637818, 5049275636, 10098551272, 20197102544]

約数ペア:

[(1, 20197102544), (2, 10098551272), (4, 5049275636), (8, 2524637818), (16, 1262318909), (97, 208217552), (139, 145302896), (194, 104108776), (251, 80466544), (278, 72651448), (373, 54147728), (388, 52054388), (502, 40233272), (556, 36325724), (746, 27073864), (776, 26027194), (1004, 20116636), (1112, 18162862), (1492, 13536932), (1552, 13013597), (2008, 10058318), (2224, 9081431), (2984, 6768466), (4016, 5029159), (5968, 3384233), (13483, 1497968), (24347, 829552), (26966, 748984), (34889, 578896), (36181, 558224), (48694, 414776), (51847, 389552), (53932, 374492), (69778, 289448), (72362, 279112), (93623, 215728), (97388, 207388), (103694, 194776), (107864, 187246), (139556, 144724)]