51679120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 125116992

約数和(自身を除く): 73437872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 83, 86, 166, 172, 181, 215, 332, 344, 362, 415, 430, 664, 688, 724, 830, 860, 905, 1328, 1448, 1660, 1720, 1810, 2896, 3320, 3440, 3569, 3620, 6640, 7138, 7240, 7783, 14276, 14480, 15023, 15566, 17845, 28552, 30046, 31132, 35690, 38915, 57104, 60092, 62264, 71380, 75115, 77830, 120184, 124528, 142760, 150230, 155660, 240368, 285520, 300460, 311320, 600920, 622640, 645989, 1201840, 1291978, 2583956, 3229945, 5167912, 6459890, 10335824, 12919780, 25839560, 51679120]

約数ペア:

[(1, 51679120), (2, 25839560), (4, 12919780), (5, 10335824), (8, 6459890), (10, 5167912), (16, 3229945), (20, 2583956), (40, 1291978), (43, 1201840), (80, 645989), (83, 622640), (86, 600920), (166, 311320), (172, 300460), (181, 285520), (215, 240368), (332, 155660), (344, 150230), (362, 142760), (415, 124528), (430, 120184), (664, 77830), (688, 75115), (724, 71380), (830, 62264), (860, 60092), (905, 57104), (1328, 38915), (1448, 35690), (1660, 31132), (1720, 30046), (1810, 28552), (2896, 17845), (3320, 15566), (3440, 15023), (3569, 14480), (3620, 14276), (6640, 7783), (7138, 7240)]