1991938993912

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{863}}^1\times {\mathrm{207121}}^1$

素因数の和:208196

約数の個数: 64

約数和(自身を含む): 4294881792000

約数和(自身を除く): 2302942798088

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 863, 1393, 1592, 1726, 2786, 3452, 5572, 6041, 6904, 11144, 12082, 24164, 48328, 171737, 207121, 343474, 414242, 686948, 828484, 1202159, 1373896, 1449847, 1656968, 2404318, 2899694, 4808636, 5799388, 9617272, 11598776, 41217079, 82434158, 164868316, 178745423, 288519553, 329736632, 357490846, 577039106, 714981692, 1154078212, 1251217961, 1429963384, 2308156424, 2502435922, 5004871844, 10009743688, 35570339177, 71140678354, 142281356708, 248992374239, 284562713416, 497984748478, 995969496956, 1991938993912]

約数ペア:

[(1, 1991938993912), (2, 995969496956), (4, 497984748478), (7, 284562713416), (8, 248992374239), (14, 142281356708), (28, 71140678354), (56, 35570339177), (199, 10009743688), (398, 5004871844), (796, 2502435922), (863, 2308156424), (1393, 1429963384), (1592, 1251217961), (1726, 1154078212), (2786, 714981692), (3452, 577039106), (5572, 357490846), (6041, 329736632), (6904, 288519553), (11144, 178745423), (12082, 164868316), (24164, 82434158), (48328, 41217079), (171737, 11598776), (207121, 9617272), (343474, 5799388), (414242, 4808636), (686948, 2899694), (828484, 2404318), (1202159, 1656968), (1373896, 1449847)]