1317018880

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33191}}^1$

素因数の和:33243

約数の個数: 72

約数和(自身を含む): 3256533504

約数和(自身を除く): 1939514624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 33191, 39680, 66382, 132764, 165955, 265528, 331910, 531056, 663820, 1028921, 1062112, 1327640, 2057842, 2124224, 2655280, 4115684, 4248448, 5144605, 5310560, 8231368, 8496896, 10289210, 10621120, 16462736, 20578420, 21242240, 32925472, 41156840, 42484480, 65850944, 82313680, 131701888, 164627360, 263403776, 329254720, 658509440, 1317018880]

約数ペア:

[(1, 1317018880), (2, 658509440), (4, 329254720), (5, 263403776), (8, 164627360), (10, 131701888), (16, 82313680), (20, 65850944), (31, 42484480), (32, 41156840), (40, 32925472), (62, 21242240), (64, 20578420), (80, 16462736), (124, 10621120), (128, 10289210), (155, 8496896), (160, 8231368), (248, 5310560), (256, 5144605), (310, 4248448), (320, 4115684), (496, 2655280), (620, 2124224), (640, 2057842), (992, 1327640), (1240, 1062112), (1280, 1028921), (1984, 663820), (2480, 531056), (3968, 331910), (4960, 265528), (7936, 165955), (9920, 132764), (19840, 66382), (33191, 39680)]