400958040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2423}}^1$

素因数の和:2641

約数の個数: 128

約数和(自身を含む): 1382261760

約数和(自身を除く): 981303720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 197, 210, 280, 394, 420, 591, 788, 840, 985, 1182, 1379, 1576, 1970, 2364, 2423, 2758, 2955, 3940, 4137, 4728, 4846, 5516, 5910, 6895, 7269, 7880, 8274, 9692, 11032, 11820, 12115, 13790, 14538, 16548, 16961, 19384, 20685, 23640, 24230, 27580, 29076, 33096, 33922, 36345, 41370, 48460, 50883, 55160, 58152, 67844, 72690, 82740, 84805, 96920, 101766, 135688, 145380, 165480, 169610, 203532, 254415, 290760, 339220, 407064, 477331, 508830, 678440, 954662, 1017660, 1431993, 1909324, 2035320, 2386655, 2863986, 3341317, 3818648, 4773310, 5727972, 6682634, 7159965, 9546620, 10023951, 11455944, 13365268, 14319930, 16706585, 19093240, 20047902, 26730536, 28639860, 33413170, 40095804, 50119755, 57279720, 66826340, 80191608, 100239510, 133652680, 200479020, 400958040]

約数ペア:

[(1, 400958040), (2, 200479020), (3, 133652680), (4, 100239510), (5, 80191608), (6, 66826340), (7, 57279720), (8, 50119755), (10, 40095804), (12, 33413170), (14, 28639860), (15, 26730536), (20, 20047902), (21, 19093240), (24, 16706585), (28, 14319930), (30, 13365268), (35, 11455944), (40, 10023951), (42, 9546620), (56, 7159965), (60, 6682634), (70, 5727972), (84, 4773310), (105, 3818648), (120, 3341317), (140, 2863986), (168, 2386655), (197, 2035320), (210, 1909324), (280, 1431993), (394, 1017660), (420, 954662), (591, 678440), (788, 508830), (840, 477331), (985, 407064), (1182, 339220), (1379, 290760), (1576, 254415), (1970, 203532), (2364, 169610), (2423, 165480), (2758, 145380), (2955, 135688), (3940, 101766), (4137, 96920), (4728, 84805), (4846, 82740), (5516, 72690), (5910, 67844), (6895, 58152), (7269, 55160), (7880, 50883), (8274, 48460), (9692, 41370), (11032, 36345), (11820, 33922), (12115, 33096), (13790, 29076), (14538, 27580), (16548, 24230), (16961, 23640), (19384, 20685)]