289471120

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{461}}^1$

素因数の和:688

約数の個数: 80

約数和(自身を含む): 692955648

約数和(自身を除く): 403484528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 167, 188, 235, 334, 376, 461, 470, 668, 752, 835, 922, 940, 1336, 1670, 1844, 1880, 2305, 2672, 3340, 3688, 3760, 4610, 6680, 7376, 7849, 9220, 13360, 15698, 18440, 21667, 31396, 36880, 39245, 43334, 62792, 76987, 78490, 86668, 108335, 125584, 153974, 156980, 173336, 216670, 307948, 313960, 346672, 384935, 433340, 615896, 627920, 769870, 866680, 1231792, 1539740, 1733360, 3079480, 3618389, 6158960, 7236778, 14473556, 18091945, 28947112, 36183890, 57894224, 72367780, 144735560, 289471120]

約数ペア:

[(1, 289471120), (2, 144735560), (4, 72367780), (5, 57894224), (8, 36183890), (10, 28947112), (16, 18091945), (20, 14473556), (40, 7236778), (47, 6158960), (80, 3618389), (94, 3079480), (167, 1733360), (188, 1539740), (235, 1231792), (334, 866680), (376, 769870), (461, 627920), (470, 615896), (668, 433340), (752, 384935), (835, 346672), (922, 313960), (940, 307948), (1336, 216670), (1670, 173336), (1844, 156980), (1880, 153974), (2305, 125584), (2672, 108335), (3340, 86668), (3688, 78490), (3760, 76987), (4610, 62792), (6680, 43334), (7376, 39245), (7849, 36880), (9220, 31396), (13360, 21667), (15698, 18440)]