80371840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4051}}^1$

素因数の和:4101

約数の個数: 64

約数和(自身を含む): 198385920

約数和(自身を除く): 118014080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4051, 4960, 8102, 9920, 16204, 19840, 20255, 32408, 40510, 64816, 81020, 125581, 129632, 162040, 251162, 259264, 324080, 502324, 518528, 627905, 648160, 1004648, 1255810, 1296320, 2009296, 2511620, 2592640, 4018592, 5023240, 8037184, 10046480, 16074368, 20092960, 40185920, 80371840]

約数ペア:

[(1, 80371840), (2, 40185920), (4, 20092960), (5, 16074368), (8, 10046480), (10, 8037184), (16, 5023240), (20, 4018592), (31, 2592640), (32, 2511620), (40, 2009296), (62, 1296320), (64, 1255810), (80, 1004648), (124, 648160), (128, 627905), (155, 518528), (160, 502324), (248, 324080), (310, 259264), (320, 251162), (496, 162040), (620, 129632), (640, 125581), (992, 81020), (1240, 64816), (1984, 40510), (2480, 32408), (3968, 20255), (4051, 19840), (4960, 16204), (8102, 9920)]