20825070

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{757}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 57632256

約数和(自身を除く): 36807186

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 131, 210, 262, 393, 655, 757, 786, 917, 1310, 1514, 1834, 1965, 2271, 2751, 3785, 3930, 4542, 4585, 5299, 5502, 7570, 9170, 10598, 11355, 13755, 15897, 22710, 26495, 27510, 31794, 52990, 79485, 99167, 158970, 198334, 297501, 495835, 595002, 694169, 991670, 1388338, 1487505, 2082507, 2975010, 3470845, 4165014, 6941690, 10412535, 20825070]

約数ペア:

[(1, 20825070), (2, 10412535), (3, 6941690), (5, 4165014), (6, 3470845), (7, 2975010), (10, 2082507), (14, 1487505), (15, 1388338), (21, 991670), (30, 694169), (35, 595002), (42, 495835), (70, 297501), (105, 198334), (131, 158970), (210, 99167), (262, 79485), (393, 52990), (655, 31794), (757, 27510), (786, 26495), (917, 22710), (1310, 15897), (1514, 13755), (1834, 11355), (1965, 10598), (2271, 9170), (2751, 7570), (3785, 5502), (3930, 5299), (4542, 4585)]