20178653920

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{41941}}^1$

素因数の和:42084

約数の個数: 96

約数和(自身を含む): 49718382336

約数和(自身を除く): 29539728416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 97, 124, 155, 160, 194, 248, 310, 388, 485, 496, 620, 776, 970, 992, 1240, 1552, 1940, 2480, 3007, 3104, 3880, 4960, 6014, 7760, 12028, 15035, 15520, 24056, 30070, 41941, 48112, 60140, 83882, 96224, 120280, 167764, 209705, 240560, 335528, 419410, 481120, 671056, 838820, 1300171, 1342112, 1677640, 2600342, 3355280, 4068277, 5200684, 6500855, 6710560, 8136554, 10401368, 13001710, 16273108, 20341385, 20802736, 26003420, 32546216, 40682770, 41605472, 52006840, 65092432, 81365540, 104013680, 126116587, 130184864, 162731080, 208027360, 252233174, 325462160, 504466348, 630582935, 650924320, 1008932696, 1261165870, 2017865392, 2522331740, 4035730784, 5044663480, 10089326960, 20178653920]

約数ペア:

[(1, 20178653920), (2, 10089326960), (4, 5044663480), (5, 4035730784), (8, 2522331740), (10, 2017865392), (16, 1261165870), (20, 1008932696), (31, 650924320), (32, 630582935), (40, 504466348), (62, 325462160), (80, 252233174), (97, 208027360), (124, 162731080), (155, 130184864), (160, 126116587), (194, 104013680), (248, 81365540), (310, 65092432), (388, 52006840), (485, 41605472), (496, 40682770), (620, 32546216), (776, 26003420), (970, 20802736), (992, 20341385), (1240, 16273108), (1552, 13001710), (1940, 10401368), (2480, 8136554), (3007, 6710560), (3104, 6500855), (3880, 5200684), (4960, 4068277), (6014, 3355280), (7760, 2600342), (12028, 1677640), (15035, 1342112), (15520, 1300171), (24056, 838820), (30070, 671056), (41941, 481120), (48112, 419410), (60140, 335528), (83882, 240560), (96224, 209705), (120280, 167764)]