20121131312

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1433}}^1\times {\mathrm{28309}}^1$

素因数の和:29781

約数の個数: 40

約数和(自身を含む): 40271767680

約数和(自身を除く): 20150636368

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1433, 2866, 5732, 11464, 22928, 28309, 44423, 56618, 88846, 113236, 177692, 226472, 355384, 452944, 710768, 877579, 1755158, 3510316, 7020632, 14041264, 40566797, 81133594, 162267188, 324534376, 649068752, 1257570707, 2515141414, 5030282828, 10060565656, 20121131312]

約数ペア:

[(1, 20121131312), (2, 10060565656), (4, 5030282828), (8, 2515141414), (16, 1257570707), (31, 649068752), (62, 324534376), (124, 162267188), (248, 81133594), (496, 40566797), (1433, 14041264), (2866, 7020632), (5732, 3510316), (11464, 1755158), (22928, 877579), (28309, 710768), (44423, 452944), (56618, 355384), (88846, 226472), (113236, 177692)]