20155321840

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1\times {\mathrm{2833}}^1$

素因数の和:3746

約数の個数: 80

約数和(自身を含む): 47352603168

約数和(自身を除く): 27197281328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 787, 904, 1130, 1574, 1808, 2260, 2833, 3148, 3935, 4520, 5666, 6296, 7870, 9040, 11332, 12592, 14165, 15740, 22664, 28330, 31480, 45328, 56660, 62960, 88931, 113320, 177862, 226640, 320129, 355724, 444655, 640258, 711448, 889310, 1280516, 1422896, 1600645, 1778620, 2229571, 2561032, 3201290, 3557240, 4459142, 5122064, 6402580, 7114480, 8918284, 11147855, 12805160, 17836568, 22295710, 25610320, 35673136, 44591420, 89182840, 178365680, 251941523, 503883046, 1007766092, 1259707615, 2015532184, 2519415230, 4031064368, 5038830460, 10077660920, 20155321840]

約数ペア:

[(1, 20155321840), (2, 10077660920), (4, 5038830460), (5, 4031064368), (8, 2519415230), (10, 2015532184), (16, 1259707615), (20, 1007766092), (40, 503883046), (80, 251941523), (113, 178365680), (226, 89182840), (452, 44591420), (565, 35673136), (787, 25610320), (904, 22295710), (1130, 17836568), (1574, 12805160), (1808, 11147855), (2260, 8918284), (2833, 7114480), (3148, 6402580), (3935, 5122064), (4520, 4459142), (5666, 3557240), (6296, 3201290), (7870, 2561032), (9040, 2229571), (11332, 1778620), (12592, 1600645), (14165, 1422896), (15740, 1280516), (22664, 889310), (28330, 711448), (31480, 640258), (45328, 444655), (56660, 355724), (62960, 320129), (88931, 226640), (113320, 177862)]