20391471840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2235907}}^1$

素因数の和:2235944

約数の個数: 96

約数和(自身を含む): 67613857920

約数和(自身を除く): 47222386080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 95, 96, 114, 120, 152, 160, 190, 228, 240, 285, 304, 380, 456, 480, 570, 608, 760, 912, 1140, 1520, 1824, 2280, 3040, 4560, 9120, 2235907, 4471814, 6707721, 8943628, 11179535, 13415442, 17887256, 22359070, 26830884, 33538605, 35774512, 42482233, 44718140, 53661768, 67077210, 71549024, 84964466, 89436280, 107323536, 127446699, 134154420, 169928932, 178872560, 212411165, 214647072, 254893398, 268308840, 339857864, 357745120, 424822330, 509786796, 536617680, 637233495, 679715728, 849644660, 1019573592, 1073235360, 1274466990, 1359431456, 1699289320, 2039147184, 2548933980, 3398578640, 4078294368, 5097867960, 6797157280, 10195735920, 20391471840]

約数ペア:

[(1, 20391471840), (2, 10195735920), (3, 6797157280), (4, 5097867960), (5, 4078294368), (6, 3398578640), (8, 2548933980), (10, 2039147184), (12, 1699289320), (15, 1359431456), (16, 1274466990), (19, 1073235360), (20, 1019573592), (24, 849644660), (30, 679715728), (32, 637233495), (38, 536617680), (40, 509786796), (48, 424822330), (57, 357745120), (60, 339857864), (76, 268308840), (80, 254893398), (95, 214647072), (96, 212411165), (114, 178872560), (120, 169928932), (152, 134154420), (160, 127446699), (190, 107323536), (228, 89436280), (240, 84964466), (285, 71549024), (304, 67077210), (380, 53661768), (456, 44718140), (480, 42482233), (570, 35774512), (608, 33538605), (760, 26830884), (912, 22359070), (1140, 17887256), (1520, 13415442), (1824, 11179535), (2280, 8943628), (3040, 6707721), (4560, 4471814), (9120, 2235907)]