1990340760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1\times {\mathrm{1327}}^1$

素因数の和:1801

約数の個数: 128

約数和(自身を含む): 6195916800

約数和(自身を除く): 4205576040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 431, 435, 580, 696, 862, 870, 1160, 1293, 1327, 1724, 1740, 2155, 2586, 2654, 3448, 3480, 3981, 4310, 5172, 5308, 6465, 6635, 7962, 8620, 10344, 10616, 12499, 12930, 13270, 15924, 17240, 19905, 24998, 25860, 26540, 31848, 37497, 38483, 39810, 49996, 51720, 53080, 62495, 74994, 76966, 79620, 99992, 115449, 124990, 149988, 153932, 159240, 187485, 192415, 230898, 249980, 299976, 307864, 374970, 384830, 461796, 499960, 571937, 577245, 749940, 769660, 923592, 1143874, 1154490, 1499880, 1539320, 1715811, 2287748, 2308980, 2859685, 3431622, 4575496, 4617960, 5719370, 6863244, 8579055, 11438740, 13726488, 16586173, 17158110, 22877480, 33172346, 34316220, 49758519, 66344692, 68632440, 82930865, 99517038, 132689384, 165861730, 199034076, 248792595, 331723460, 398068152, 497585190, 663446920, 995170380, 1990340760]

約数ペア:

[(1, 1990340760), (2, 995170380), (3, 663446920), (4, 497585190), (5, 398068152), (6, 331723460), (8, 248792595), (10, 199034076), (12, 165861730), (15, 132689384), (20, 99517038), (24, 82930865), (29, 68632440), (30, 66344692), (40, 49758519), (58, 34316220), (60, 33172346), (87, 22877480), (116, 17158110), (120, 16586173), (145, 13726488), (174, 11438740), (232, 8579055), (290, 6863244), (348, 5719370), (431, 4617960), (435, 4575496), (580, 3431622), (696, 2859685), (862, 2308980), (870, 2287748), (1160, 1715811), (1293, 1539320), (1327, 1499880), (1724, 1154490), (1740, 1143874), (2155, 923592), (2586, 769660), (2654, 749940), (3448, 577245), (3480, 571937), (3981, 499960), (4310, 461796), (5172, 384830), (5308, 374970), (6465, 307864), (6635, 299976), (7962, 249980), (8620, 230898), (10344, 192415), (10616, 187485), (12499, 159240), (12930, 153932), (13270, 149988), (15924, 124990), (17240, 115449), (19905, 99992), (24998, 79620), (25860, 76966), (26540, 74994), (31848, 62495), (37497, 53080), (38483, 51720), (39810, 49996)]