18440186968

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{69809}}^1$

素因数の和:69964

約数の個数: 64

約数和(自身を含む): 40713192000

約数和(自身を除く): 22273005032

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 89, 106, 178, 212, 356, 371, 424, 623, 712, 742, 1246, 1484, 2492, 2968, 4717, 4984, 9434, 18868, 33019, 37736, 66038, 69809, 132076, 139618, 264152, 279236, 488663, 558472, 977326, 1954652, 3699877, 3909304, 6213001, 7399754, 12426002, 14799508, 24852004, 25899139, 29599016, 43491007, 49704008, 51798278, 86982014, 103596556, 173964028, 207193112, 329289053, 347928056, 658578106, 1317156212, 2305023371, 2634312424, 4610046742, 9220093484, 18440186968]

約数ペア:

[(1, 18440186968), (2, 9220093484), (4, 4610046742), (7, 2634312424), (8, 2305023371), (14, 1317156212), (28, 658578106), (53, 347928056), (56, 329289053), (89, 207193112), (106, 173964028), (178, 103596556), (212, 86982014), (356, 51798278), (371, 49704008), (424, 43491007), (623, 29599016), (712, 25899139), (742, 24852004), (1246, 14799508), (1484, 12426002), (2492, 7399754), (2968, 6213001), (4717, 3909304), (4984, 3699877), (9434, 1954652), (18868, 977326), (33019, 558472), (37736, 488663), (66038, 279236), (69809, 264152), (132076, 139618)]