278402080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{499}}^1$

素因数の和:842

約数の個数: 96

約数和(自身を含む): 721224000

約数和(自身を除く): 442821920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 317, 352, 440, 499, 634, 880, 998, 1268, 1585, 1760, 1996, 2495, 2536, 3170, 3487, 3992, 4990, 5072, 5489, 6340, 6974, 7984, 9980, 10144, 10978, 12680, 13948, 15968, 17435, 19960, 21956, 25360, 27445, 27896, 34870, 39920, 43912, 50720, 54890, 55792, 69740, 79840, 87824, 109780, 111584, 139480, 158183, 175648, 219560, 278960, 316366, 439120, 557920, 632732, 790915, 878240, 1265464, 1581830, 1740013, 2530928, 3163660, 3480026, 5061856, 6327320, 6960052, 8700065, 12654640, 13920104, 17400130, 25309280, 27840208, 34800260, 55680416, 69600520, 139201040, 278402080]

約数ペア:

[(1, 278402080), (2, 139201040), (4, 69600520), (5, 55680416), (8, 34800260), (10, 27840208), (11, 25309280), (16, 17400130), (20, 13920104), (22, 12654640), (32, 8700065), (40, 6960052), (44, 6327320), (55, 5061856), (80, 3480026), (88, 3163660), (110, 2530928), (160, 1740013), (176, 1581830), (220, 1265464), (317, 878240), (352, 790915), (440, 632732), (499, 557920), (634, 439120), (880, 316366), (998, 278960), (1268, 219560), (1585, 175648), (1760, 158183), (1996, 139480), (2495, 111584), (2536, 109780), (3170, 87824), (3487, 79840), (3992, 69740), (4990, 55792), (5072, 54890), (5489, 50720), (6340, 43912), (6974, 39920), (7984, 34870), (9980, 27896), (10144, 27445), (10978, 25360), (12680, 21956), (13948, 19960), (15968, 17435)]