251237220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18947}}^1$

素因数の和:18989

約数の個数: 96

約数和(自身を含む): 802182528

約数和(自身を除く): 550945308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 18947, 37894, 56841, 75788, 94735, 113682, 189470, 227364, 246311, 284205, 322099, 378940, 492622, 568410, 644198, 738933, 966297, 985244, 1136820, 1231555, 1288396, 1477866, 1610495, 1932594, 2463110, 2955732, 3220990, 3694665, 3865188, 4187287, 4831485, 4926220, 6441980, 7389330, 8374574, 9662970, 12561861, 14778660, 16749148, 19325940, 20936435, 25123722, 41872870, 50247444, 62809305, 83745740, 125618610, 251237220]

約数ペア:

[(1, 251237220), (2, 125618610), (3, 83745740), (4, 62809305), (5, 50247444), (6, 41872870), (10, 25123722), (12, 20936435), (13, 19325940), (15, 16749148), (17, 14778660), (20, 12561861), (26, 9662970), (30, 8374574), (34, 7389330), (39, 6441980), (51, 4926220), (52, 4831485), (60, 4187287), (65, 3865188), (68, 3694665), (78, 3220990), (85, 2955732), (102, 2463110), (130, 1932594), (156, 1610495), (170, 1477866), (195, 1288396), (204, 1231555), (221, 1136820), (255, 985244), (260, 966297), (340, 738933), (390, 644198), (442, 568410), (510, 492622), (663, 378940), (780, 322099), (884, 284205), (1020, 246311), (1105, 227364), (1326, 189470), (2210, 113682), (2652, 94735), (3315, 75788), (4420, 56841), (6630, 37894), (13260, 18947)]