31901870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3187}}^1$

素因数の和:3225

約数の個数: 64

約数和(自身を含む): 77124096

約数和(自身を除く): 45222226

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 3187, 5005, 6374, 10010, 15935, 22309, 31870, 35057, 41431, 44618, 70114, 82862, 111545, 175285, 207155, 223090, 245399, 290017, 350570, 414310, 455741, 490798, 580034, 911482, 1226995, 1450085, 2278705, 2453990, 2900170, 3190187, 4557410, 6380374, 15950935, 31901870]

約数ペア:

[(1, 31901870), (2, 15950935), (5, 6380374), (7, 4557410), (10, 3190187), (11, 2900170), (13, 2453990), (14, 2278705), (22, 1450085), (26, 1226995), (35, 911482), (55, 580034), (65, 490798), (70, 455741), (77, 414310), (91, 350570), (110, 290017), (130, 245399), (143, 223090), (154, 207155), (182, 175285), (286, 111545), (385, 82862), (455, 70114), (715, 44618), (770, 41431), (910, 35057), (1001, 31870), (1430, 22309), (2002, 15935), (3187, 10010), (5005, 6374)]