20236890640

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1\times {\mathrm{9929}}^1$

素因数の和:10364

約数の個数: 80

約数和(自身を含む): 47836782000

約数和(自身を除く): 27599891360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 349, 365, 584, 698, 730, 1168, 1396, 1460, 1745, 2792, 2920, 3490, 5584, 5840, 6980, 9929, 13960, 19858, 25477, 27920, 39716, 49645, 50954, 79432, 99290, 101908, 127385, 158864, 198580, 203816, 254770, 397160, 407632, 509540, 724817, 794320, 1019080, 1449634, 2038160, 2899268, 3465221, 3624085, 5798536, 6930442, 7248170, 11597072, 13860884, 14496340, 17326105, 27721768, 28992680, 34652210, 55443536, 57985360, 69304420, 138608840, 252961133, 277217680, 505922266, 1011844532, 1264805665, 2023689064, 2529611330, 4047378128, 5059222660, 10118445320, 20236890640]

約数ペア:

[(1, 20236890640), (2, 10118445320), (4, 5059222660), (5, 4047378128), (8, 2529611330), (10, 2023689064), (16, 1264805665), (20, 1011844532), (40, 505922266), (73, 277217680), (80, 252961133), (146, 138608840), (292, 69304420), (349, 57985360), (365, 55443536), (584, 34652210), (698, 28992680), (730, 27721768), (1168, 17326105), (1396, 14496340), (1460, 13860884), (1745, 11597072), (2792, 7248170), (2920, 6930442), (3490, 5798536), (5584, 3624085), (5840, 3465221), (6980, 2899268), (9929, 2038160), (13960, 1449634), (19858, 1019080), (25477, 794320), (27920, 724817), (39716, 509540), (49645, 407632), (50954, 397160), (79432, 254770), (99290, 203816), (101908, 198580), (127385, 158864)]