138468320

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27917}}^1$

素因数の和:27963

約数の個数: 48

約数和(自身を含む): 337696128

約数和(自身を除く): 199227808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 27917, 55834, 111668, 139585, 223336, 279170, 446672, 558340, 865427, 893344, 1116680, 1730854, 2233360, 3461708, 4327135, 4466720, 6923416, 8654270, 13846832, 17308540, 27693664, 34617080, 69234160, 138468320]

約数ペア:

[(1, 138468320), (2, 69234160), (4, 34617080), (5, 27693664), (8, 17308540), (10, 13846832), (16, 8654270), (20, 6923416), (31, 4466720), (32, 4327135), (40, 3461708), (62, 2233360), (80, 1730854), (124, 1116680), (155, 893344), (160, 865427), (248, 558340), (310, 446672), (496, 279170), (620, 223336), (992, 139585), (1240, 111668), (2480, 55834), (4960, 27917)]