399806880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{75721}}^1$

素因数の和:75750

約数の個数: 96

約数和(自身を含む): 1373899968

約数和(自身を除く): 974093088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 5280, 75721, 151442, 227163, 302884, 378605, 454326, 605768, 757210, 832931, 908652, 1135815, 1211536, 1514420, 1665862, 1817304, 2271630, 2423072, 2498793, 3028840, 3331724, 3634608, 4164655, 4543260, 4997586, 6057680, 6663448, 7269216, 8329310, 9086520, 9995172, 12115360, 12493965, 13326896, 16658620, 18173040, 19990344, 24987930, 26653792, 33317240, 36346080, 39980688, 49975860, 66634480, 79961376, 99951720, 133268960, 199903440, 399806880]

約数ペア:

[(1, 399806880), (2, 199903440), (3, 133268960), (4, 99951720), (5, 79961376), (6, 66634480), (8, 49975860), (10, 39980688), (11, 36346080), (12, 33317240), (15, 26653792), (16, 24987930), (20, 19990344), (22, 18173040), (24, 16658620), (30, 13326896), (32, 12493965), (33, 12115360), (40, 9995172), (44, 9086520), (48, 8329310), (55, 7269216), (60, 6663448), (66, 6057680), (80, 4997586), (88, 4543260), (96, 4164655), (110, 3634608), (120, 3331724), (132, 3028840), (160, 2498793), (165, 2423072), (176, 2271630), (220, 1817304), (240, 1665862), (264, 1514420), (330, 1211536), (352, 1135815), (440, 908652), (480, 832931), (528, 757210), (660, 605768), (880, 454326), (1056, 378605), (1320, 302884), (1760, 227163), (2640, 151442), (5280, 75721)]