71471920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3617}}^1$

素因数の和:3662

約数の個数: 80

約数和(自身を含む): 188425440

約数和(自身を除く): 116953520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3617, 3952, 4940, 7234, 9880, 14468, 18085, 19760, 28936, 36170, 47021, 57872, 68723, 72340, 94042, 137446, 144680, 188084, 235105, 274892, 289360, 343615, 376168, 470210, 549784, 687230, 752336, 893399, 940420, 1099568, 1374460, 1786798, 1880840, 2748920, 3573596, 3761680, 4466995, 5497840, 7147192, 8933990, 14294384, 17867980, 35735960, 71471920]

約数ペア:

[(1, 71471920), (2, 35735960), (4, 17867980), (5, 14294384), (8, 8933990), (10, 7147192), (13, 5497840), (16, 4466995), (19, 3761680), (20, 3573596), (26, 2748920), (38, 1880840), (40, 1786798), (52, 1374460), (65, 1099568), (76, 940420), (80, 893399), (95, 752336), (104, 687230), (130, 549784), (152, 470210), (190, 376168), (208, 343615), (247, 289360), (260, 274892), (304, 235105), (380, 188084), (494, 144680), (520, 137446), (760, 94042), (988, 72340), (1040, 68723), (1235, 57872), (1520, 47021), (1976, 36170), (2470, 28936), (3617, 19760), (3952, 18085), (4940, 14468), (7234, 9880)]