81339440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11173}}^1$

素因数の和:11206

約数の個数: 80

約数和(自身を含む): 232776768

約数和(自身を除く): 151437328

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 11173, 22346, 44692, 55865, 78211, 89384, 111730, 145249, 156422, 178768, 223460, 290498, 312844, 391055, 446920, 580996, 625688, 726245, 782110, 893840, 1016743, 1161992, 1251376, 1452490, 1564220, 2033486, 2323984, 2904980, 3128440, 4066972, 5083715, 5809960, 6256880, 8133944, 10167430, 11619920, 16267888, 20334860, 40669720, 81339440]

約数ペア:

[(1, 81339440), (2, 40669720), (4, 20334860), (5, 16267888), (7, 11619920), (8, 10167430), (10, 8133944), (13, 6256880), (14, 5809960), (16, 5083715), (20, 4066972), (26, 3128440), (28, 2904980), (35, 2323984), (40, 2033486), (52, 1564220), (56, 1452490), (65, 1251376), (70, 1161992), (80, 1016743), (91, 893840), (104, 782110), (112, 726245), (130, 625688), (140, 580996), (182, 446920), (208, 391055), (260, 312844), (280, 290498), (364, 223460), (455, 178768), (520, 156422), (560, 145249), (728, 111730), (910, 89384), (1040, 78211), (1456, 55865), (1820, 44692), (3640, 22346), (7280, 11173)]