138694480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:464

約数の個数: 80

約数和(自身を含む): 332259984

約数和(自身を除く): 193565504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 97, 122, 194, 244, 293, 305, 388, 485, 488, 586, 610, 776, 970, 976, 1172, 1220, 1465, 1552, 1940, 2344, 2440, 2930, 3880, 4688, 4880, 5860, 5917, 7760, 11720, 11834, 17873, 23440, 23668, 28421, 29585, 35746, 47336, 56842, 59170, 71492, 89365, 94672, 113684, 118340, 142105, 142984, 178730, 227368, 236680, 284210, 285968, 357460, 454736, 473360, 568420, 714920, 1136840, 1429840, 1733681, 2273680, 3467362, 6934724, 8668405, 13869448, 17336810, 27738896, 34673620, 69347240, 138694480]

約数ペア:

[(1, 138694480), (2, 69347240), (4, 34673620), (5, 27738896), (8, 17336810), (10, 13869448), (16, 8668405), (20, 6934724), (40, 3467362), (61, 2273680), (80, 1733681), (97, 1429840), (122, 1136840), (194, 714920), (244, 568420), (293, 473360), (305, 454736), (388, 357460), (485, 285968), (488, 284210), (586, 236680), (610, 227368), (776, 178730), (970, 142984), (976, 142105), (1172, 118340), (1220, 113684), (1465, 94672), (1552, 89365), (1940, 71492), (2344, 59170), (2440, 56842), (2930, 47336), (3880, 35746), (4688, 29585), (4880, 28421), (5860, 23668), (5917, 23440), (7760, 17873), (11720, 11834)]