38988080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:322

約数の個数: 80

約数和(自身を含む): 95232000

約数和(自身を除く): 56243920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 199, 248, 310, 316, 395, 398, 496, 620, 632, 790, 796, 995, 1240, 1264, 1580, 1592, 1990, 2449, 2480, 3160, 3184, 3980, 4898, 6169, 6320, 7960, 9796, 12245, 12338, 15721, 15920, 19592, 24490, 24676, 30845, 31442, 39184, 48980, 49352, 61690, 62884, 78605, 97960, 98704, 123380, 125768, 157210, 195920, 246760, 251536, 314420, 487351, 493520, 628840, 974702, 1257680, 1949404, 2436755, 3898808, 4873510, 7797616, 9747020, 19494040, 38988080]

約数ペア:

[(1, 38988080), (2, 19494040), (4, 9747020), (5, 7797616), (8, 4873510), (10, 3898808), (16, 2436755), (20, 1949404), (31, 1257680), (40, 974702), (62, 628840), (79, 493520), (80, 487351), (124, 314420), (155, 251536), (158, 246760), (199, 195920), (248, 157210), (310, 125768), (316, 123380), (395, 98704), (398, 97960), (496, 78605), (620, 62884), (632, 61690), (790, 49352), (796, 48980), (995, 39184), (1240, 31442), (1264, 30845), (1580, 24676), (1592, 24490), (1990, 19592), (2449, 15920), (2480, 15721), (3160, 12338), (3184, 12245), (3980, 9796), (4898, 7960), (6169, 6320)]