31557008

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 73804800

約数和(自身を除く): 42247792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 61, 62, 112, 122, 124, 149, 217, 244, 248, 298, 427, 434, 488, 496, 596, 854, 868, 976, 1043, 1192, 1708, 1736, 1891, 2086, 2384, 3416, 3472, 3782, 4172, 4619, 6832, 7564, 8344, 9089, 9238, 13237, 15128, 16688, 18178, 18476, 26474, 30256, 32333, 36356, 36952, 52948, 63623, 64666, 72712, 73904, 105896, 127246, 129332, 145424, 211792, 254492, 258664, 281759, 508984, 517328, 563518, 1017968, 1127036, 1972313, 2254072, 3944626, 4508144, 7889252, 15778504, 31557008]

約数ペア:

[(1, 31557008), (2, 15778504), (4, 7889252), (7, 4508144), (8, 3944626), (14, 2254072), (16, 1972313), (28, 1127036), (31, 1017968), (56, 563518), (61, 517328), (62, 508984), (112, 281759), (122, 258664), (124, 254492), (149, 211792), (217, 145424), (244, 129332), (248, 127246), (298, 105896), (427, 73904), (434, 72712), (488, 64666), (496, 63623), (596, 52948), (854, 36952), (868, 36356), (976, 32333), (1043, 30256), (1192, 26474), (1708, 18476), (1736, 18178), (1891, 16688), (2086, 15128), (2384, 13237), (3416, 9238), (3472, 9089), (3782, 8344), (4172, 7564), (4619, 6832)]