15790216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 34372800

約数和(自身を除く): 18582584

約数列:

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

約数ペア:

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