48485720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 115948800

約数和(自身を除く): 67463080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 131, 152, 190, 262, 380, 487, 524, 655, 760, 974, 1048, 1310, 1948, 2435, 2489, 2620, 3896, 4870, 4978, 5240, 9253, 9740, 9956, 12445, 18506, 19480, 19912, 24890, 37012, 46265, 49780, 63797, 74024, 92530, 99560, 127594, 185060, 255188, 318985, 370120, 510376, 637970, 1212143, 1275940, 2424286, 2551880, 4848572, 6060715, 9697144, 12121430, 24242860, 48485720]

約数ペア:

[(1, 48485720), (2, 24242860), (4, 12121430), (5, 9697144), (8, 6060715), (10, 4848572), (19, 2551880), (20, 2424286), (38, 1275940), (40, 1212143), (76, 637970), (95, 510376), (131, 370120), (152, 318985), (190, 255188), (262, 185060), (380, 127594), (487, 99560), (524, 92530), (655, 74024), (760, 63797), (974, 49780), (1048, 46265), (1310, 37012), (1948, 24890), (2435, 19912), (2489, 19480), (2620, 18506), (3896, 12445), (4870, 9956), (4978, 9740), (5240, 9253)]