128191920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7523}}^1$

素因数の和:7610

約数の個数: 80

約数和(自身を含む): 403045632

約数和(自身を除く): 274853712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 2130, 2840, 3408, 4260, 5680, 7523, 8520, 15046, 17040, 22569, 30092, 37615, 45138, 60184, 75230, 90276, 112845, 120368, 150460, 180552, 225690, 300920, 361104, 451380, 534133, 601840, 902760, 1068266, 1602399, 1805520, 2136532, 2670665, 3204798, 4273064, 5341330, 6409596, 8011995, 8546128, 10682660, 12819192, 16023990, 21365320, 25638384, 32047980, 42730640, 64095960, 128191920]

約数ペア:

[(1, 128191920), (2, 64095960), (3, 42730640), (4, 32047980), (5, 25638384), (6, 21365320), (8, 16023990), (10, 12819192), (12, 10682660), (15, 8546128), (16, 8011995), (20, 6409596), (24, 5341330), (30, 4273064), (40, 3204798), (48, 2670665), (60, 2136532), (71, 1805520), (80, 1602399), (120, 1068266), (142, 902760), (213, 601840), (240, 534133), (284, 451380), (355, 361104), (426, 300920), (568, 225690), (710, 180552), (852, 150460), (1065, 120368), (1136, 112845), (1420, 90276), (1704, 75230), (2130, 60184), (2840, 45138), (3408, 37615), (4260, 30092), (5680, 22569), (7523, 17040), (8520, 15046)]