13880920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 32749920

約数和(自身を除く): 18869000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 83, 113, 148, 166, 185, 226, 296, 332, 370, 415, 452, 565, 664, 740, 830, 904, 1130, 1480, 1660, 2260, 3071, 3320, 4181, 4520, 6142, 8362, 9379, 12284, 15355, 16724, 18758, 20905, 24568, 30710, 33448, 37516, 41810, 46895, 61420, 75032, 83620, 93790, 122840, 167240, 187580, 347023, 375160, 694046, 1388092, 1735115, 2776184, 3470230, 6940460, 13880920]

約数ペア:

[(1, 13880920), (2, 6940460), (4, 3470230), (5, 2776184), (8, 1735115), (10, 1388092), (20, 694046), (37, 375160), (40, 347023), (74, 187580), (83, 167240), (113, 122840), (148, 93790), (166, 83620), (185, 75032), (226, 61420), (296, 46895), (332, 41810), (370, 37516), (415, 33448), (452, 30710), (565, 24568), (664, 20905), (740, 18758), (830, 16724), (904, 15355), (1130, 12284), (1480, 9379), (1660, 8362), (2260, 6142), (3071, 4520), (3320, 4181)]