31580432

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:232

約数の個数: 80

約数和(自身を含む): 71037120

約数和(自身を除く): 39456688

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 61, 76, 104, 122, 131, 152, 208, 244, 247, 262, 304, 488, 494, 524, 793, 976, 988, 1048, 1159, 1586, 1703, 1976, 2096, 2318, 2489, 3172, 3406, 3952, 4636, 4978, 6344, 6812, 7991, 9272, 9956, 12688, 13624, 15067, 15982, 18544, 19912, 27248, 30134, 31964, 32357, 39824, 60268, 63928, 64714, 103883, 120536, 127856, 129428, 151829, 207766, 241072, 258856, 303658, 415532, 517712, 607316, 831064, 1214632, 1662128, 1973777, 2429264, 3947554, 7895108, 15790216, 31580432]

約数ペア:

[(1, 31580432), (2, 15790216), (4, 7895108), (8, 3947554), (13, 2429264), (16, 1973777), (19, 1662128), (26, 1214632), (38, 831064), (52, 607316), (61, 517712), (76, 415532), (104, 303658), (122, 258856), (131, 241072), (152, 207766), (208, 151829), (244, 129428), (247, 127856), (262, 120536), (304, 103883), (488, 64714), (494, 63928), (524, 60268), (793, 39824), (976, 32357), (988, 31964), (1048, 30134), (1159, 27248), (1586, 19912), (1703, 18544), (1976, 15982), (2096, 15067), (2318, 13624), (2489, 12688), (3172, 9956), (3406, 9272), (3952, 7991), (4636, 6812), (4978, 6344)]