20885970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{367}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 57655296

約数和(自身を除く): 36769326

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 271, 367, 542, 734, 813, 1101, 1355, 1626, 1835, 1897, 2202, 2569, 2710, 3670, 3794, 4065, 5138, 5505, 5691, 7707, 8130, 9485, 11010, 11382, 12845, 15414, 18970, 25690, 28455, 38535, 56910, 77070, 99457, 198914, 298371, 497285, 596742, 696199, 994570, 1392398, 1491855, 2088597, 2983710, 3480995, 4177194, 6961990, 10442985, 20885970]

約数ペア:

[(1, 20885970), (2, 10442985), (3, 6961990), (5, 4177194), (6, 3480995), (7, 2983710), (10, 2088597), (14, 1491855), (15, 1392398), (21, 994570), (30, 696199), (35, 596742), (42, 497285), (70, 298371), (105, 198914), (210, 99457), (271, 77070), (367, 56910), (542, 38535), (734, 28455), (813, 25690), (1101, 18970), (1355, 15414), (1626, 12845), (1835, 11382), (1897, 11010), (2202, 9485), (2569, 8130), (2710, 7707), (3670, 5691), (3794, 5505), (4065, 5138)]