217434620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:615

約数の個数: 96

約数和(自身を含む): 518192640

約数和(自身を除く): 300758020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 53, 62, 65, 106, 124, 130, 155, 212, 260, 265, 310, 403, 509, 530, 620, 689, 806, 1018, 1060, 1378, 1612, 1643, 2015, 2036, 2545, 2756, 3286, 3445, 4030, 5090, 6572, 6617, 6890, 8060, 8215, 10180, 13234, 13780, 15779, 16430, 21359, 26468, 26977, 31558, 32860, 33085, 42718, 53954, 63116, 66170, 78895, 85436, 106795, 107908, 132340, 134885, 157790, 205127, 213590, 269770, 315580, 350701, 410254, 427180, 539540, 701402, 820508, 836287, 1025635, 1402804, 1672574, 1753505, 2051270, 3345148, 3507010, 4102540, 4181435, 7014020, 8362870, 10871731, 16725740, 21743462, 43486924, 54358655, 108717310, 217434620]

約数ペア:

[(1, 217434620), (2, 108717310), (4, 54358655), (5, 43486924), (10, 21743462), (13, 16725740), (20, 10871731), (26, 8362870), (31, 7014020), (52, 4181435), (53, 4102540), (62, 3507010), (65, 3345148), (106, 2051270), (124, 1753505), (130, 1672574), (155, 1402804), (212, 1025635), (260, 836287), (265, 820508), (310, 701402), (403, 539540), (509, 427180), (530, 410254), (620, 350701), (689, 315580), (806, 269770), (1018, 213590), (1060, 205127), (1378, 157790), (1612, 134885), (1643, 132340), (2015, 107908), (2036, 106795), (2545, 85436), (2756, 78895), (3286, 66170), (3445, 63116), (4030, 53954), (5090, 42718), (6572, 33085), (6617, 32860), (6890, 31558), (8060, 26977), (8215, 26468), (10180, 21359), (13234, 16430), (13780, 15779)]