18765656

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 43848000

約数和(自身を除く): 25082344

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 149, 173, 182, 298, 346, 364, 596, 692, 728, 1043, 1192, 1211, 1384, 1937, 2086, 2249, 2422, 3874, 4172, 4498, 4844, 7748, 8344, 8996, 9688, 13559, 15496, 15743, 17992, 25777, 27118, 31486, 51554, 54236, 62972, 103108, 108472, 125944, 180439, 206216, 335101, 360878, 670202, 721756, 1340404, 1443512, 2345707, 2680808, 4691414, 9382828, 18765656]

約数ペア:

[(1, 18765656), (2, 9382828), (4, 4691414), (7, 2680808), (8, 2345707), (13, 1443512), (14, 1340404), (26, 721756), (28, 670202), (52, 360878), (56, 335101), (91, 206216), (104, 180439), (149, 125944), (173, 108472), (182, 103108), (298, 62972), (346, 54236), (364, 51554), (596, 31486), (692, 27118), (728, 25777), (1043, 17992), (1192, 15743), (1211, 15496), (1384, 13559), (1937, 9688), (2086, 8996), (2249, 8344), (2422, 7748), (3874, 4844), (4172, 4498)]