278996094

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{38461}}^1$

素因数の和:38513

約数の個数: 48

約数和(自身を含む): 672008064

約数和(自身を除く): 393011970

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 31, 39, 62, 78, 93, 117, 186, 234, 279, 403, 558, 806, 1209, 2418, 3627, 7254, 38461, 76922, 115383, 230766, 346149, 499993, 692298, 999986, 1192291, 1499979, 2384582, 2999958, 3576873, 4499937, 7153746, 8999874, 10730619, 15499783, 21461238, 30999566, 46499349, 92998698, 139498047, 278996094]

約数ペア:

[(1, 278996094), (2, 139498047), (3, 92998698), (6, 46499349), (9, 30999566), (13, 21461238), (18, 15499783), (26, 10730619), (31, 8999874), (39, 7153746), (62, 4499937), (78, 3576873), (93, 2999958), (117, 2384582), (186, 1499979), (234, 1192291), (279, 999986), (403, 692298), (558, 499993), (806, 346149), (1209, 230766), (2418, 115383), (3627, 76922), (7254, 38461)]