209517420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2237}}^1$

素因数の和:2479

約数の個数: 96

約数和(自身を含む): 673763328

約数和(自身を除く): 464245908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 223, 420, 446, 669, 892, 1115, 1338, 1561, 2230, 2237, 2676, 3122, 3345, 4460, 4474, 4683, 6244, 6690, 6711, 7805, 8948, 9366, 11185, 13380, 13422, 15610, 15659, 18732, 22370, 23415, 26844, 31220, 31318, 33555, 44740, 46830, 46977, 62636, 67110, 78295, 93660, 93954, 134220, 156590, 187908, 234885, 313180, 469770, 498851, 939540, 997702, 1496553, 1995404, 2494255, 2993106, 3491957, 4988510, 5986212, 6983914, 7482765, 9977020, 10475871, 13967828, 14965530, 17459785, 20951742, 29931060, 34919570, 41903484, 52379355, 69839140, 104758710, 209517420]

約数ペア:

[(1, 209517420), (2, 104758710), (3, 69839140), (4, 52379355), (5, 41903484), (6, 34919570), (7, 29931060), (10, 20951742), (12, 17459785), (14, 14965530), (15, 13967828), (20, 10475871), (21, 9977020), (28, 7482765), (30, 6983914), (35, 5986212), (42, 4988510), (60, 3491957), (70, 2993106), (84, 2494255), (105, 1995404), (140, 1496553), (210, 997702), (223, 939540), (420, 498851), (446, 469770), (669, 313180), (892, 234885), (1115, 187908), (1338, 156590), (1561, 134220), (2230, 93954), (2237, 93660), (2676, 78295), (3122, 67110), (3345, 62636), (4460, 46977), (4474, 46830), (4683, 44740), (6244, 33555), (6690, 31318), (6711, 31220), (7805, 26844), (8948, 23415), (9366, 22370), (11185, 18732), (13380, 15659), (13422, 15610)]