823989920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1055

約数の個数: 144

約数和(自身を含む): 2178150912

約数和(自身を除く): 1354160992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 169, 208, 248, 260, 310, 338, 403, 416, 496, 520, 620, 676, 806, 845, 983, 992, 1040, 1240, 1352, 1612, 1690, 1966, 2015, 2080, 2480, 2704, 3224, 3380, 3932, 4030, 4915, 4960, 5239, 5408, 6448, 6760, 7864, 8060, 9830, 10478, 12779, 12896, 13520, 15728, 16120, 19660, 20956, 25558, 26195, 27040, 30473, 31456, 32240, 39320, 41912, 51116, 52390, 60946, 63895, 64480, 78640, 83824, 102232, 104780, 121892, 127790, 152365, 157280, 166127, 167648, 204464, 209560, 243784, 255580, 304730, 332254, 396149, 408928, 419120, 487568, 511160, 609460, 664508, 792298, 830635, 838240, 975136, 1022320, 1218920, 1329016, 1584596, 1661270, 1980745, 2044640, 2437840, 2658032, 3169192, 3322540, 3961490, 4875680, 5149937, 5316064, 6338384, 6645080, 7922980, 10299874, 12676768, 13290160, 15845960, 20599748, 25749685, 26580320, 31691920, 41199496, 51499370, 63383840, 82398992, 102998740, 164797984, 205997480, 411994960, 823989920]

約数ペア:

[(1, 823989920), (2, 411994960), (4, 205997480), (5, 164797984), (8, 102998740), (10, 82398992), (13, 63383840), (16, 51499370), (20, 41199496), (26, 31691920), (31, 26580320), (32, 25749685), (40, 20599748), (52, 15845960), (62, 13290160), (65, 12676768), (80, 10299874), (104, 7922980), (124, 6645080), (130, 6338384), (155, 5316064), (160, 5149937), (169, 4875680), (208, 3961490), (248, 3322540), (260, 3169192), (310, 2658032), (338, 2437840), (403, 2044640), (416, 1980745), (496, 1661270), (520, 1584596), (620, 1329016), (676, 1218920), (806, 1022320), (845, 975136), (983, 838240), (992, 830635), (1040, 792298), (1240, 664508), (1352, 609460), (1612, 511160), (1690, 487568), (1966, 419120), (2015, 408928), (2080, 396149), (2480, 332254), (2704, 304730), (3224, 255580), (3380, 243784), (3932, 209560), (4030, 204464), (4915, 167648), (4960, 166127), (5239, 157280), (5408, 152365), (6448, 127790), (6760, 121892), (7864, 104780), (8060, 102232), (9830, 83824), (10478, 78640), (12779, 64480), (12896, 63895), (13520, 60946), (15728, 52390), (16120, 51116), (19660, 41912), (20956, 39320), (25558, 32240), (26195, 31456), (27040, 30473)]