254400880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5399}}^1$

素因数の和:5462

約数の個数: 80

約数和(自身を含む): 642816000

約数和(自身を除く): 388415120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4712, 5399, 5890, 9424, 10798, 11780, 21596, 23560, 26995, 43192, 47120, 53990, 86384, 102581, 107980, 167369, 205162, 215960, 334738, 410324, 431920, 512905, 669476, 820648, 836845, 1025810, 1338952, 1641296, 1673690, 2051620, 2677904, 3180011, 3347380, 4103240, 6360022, 6694760, 8206480, 12720044, 13389520, 15900055, 25440088, 31800110, 50880176, 63600220, 127200440, 254400880]

約数ペア:

[(1, 254400880), (2, 127200440), (4, 63600220), (5, 50880176), (8, 31800110), (10, 25440088), (16, 15900055), (19, 13389520), (20, 12720044), (31, 8206480), (38, 6694760), (40, 6360022), (62, 4103240), (76, 3347380), (80, 3180011), (95, 2677904), (124, 2051620), (152, 1673690), (155, 1641296), (190, 1338952), (248, 1025810), (304, 836845), (310, 820648), (380, 669476), (496, 512905), (589, 431920), (620, 410324), (760, 334738), (1178, 215960), (1240, 205162), (1520, 167369), (2356, 107980), (2480, 102581), (2945, 86384), (4712, 53990), (5399, 47120), (5890, 43192), (9424, 26995), (10798, 23560), (11780, 21596)]