349505780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:577

約数の個数: 96

約数和(自身を含む): 825796608

約数和(自身を除く): 476290828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 103, 124, 130, 155, 206, 260, 310, 403, 412, 421, 515, 620, 806, 842, 1030, 1339, 1612, 1684, 2015, 2060, 2105, 2678, 3193, 4030, 4210, 5356, 5473, 6386, 6695, 8060, 8420, 10946, 12772, 13051, 13390, 15965, 21892, 26102, 26780, 27365, 31930, 41509, 43363, 52204, 54730, 63860, 65255, 83018, 86726, 109460, 130510, 166036, 169663, 173452, 207545, 216815, 261020, 339326, 415090, 433630, 563719, 678652, 830180, 848315, 867260, 1127438, 1344253, 1696630, 2254876, 2688506, 2818595, 3393260, 5377012, 5637190, 6721265, 11274380, 13442530, 17475289, 26885060, 34950578, 69901156, 87376445, 174752890, 349505780]

約数ペア:

[(1, 349505780), (2, 174752890), (4, 87376445), (5, 69901156), (10, 34950578), (13, 26885060), (20, 17475289), (26, 13442530), (31, 11274380), (52, 6721265), (62, 5637190), (65, 5377012), (103, 3393260), (124, 2818595), (130, 2688506), (155, 2254876), (206, 1696630), (260, 1344253), (310, 1127438), (403, 867260), (412, 848315), (421, 830180), (515, 678652), (620, 563719), (806, 433630), (842, 415090), (1030, 339326), (1339, 261020), (1612, 216815), (1684, 207545), (2015, 173452), (2060, 169663), (2105, 166036), (2678, 130510), (3193, 109460), (4030, 86726), (4210, 83018), (5356, 65255), (5473, 63860), (6386, 54730), (6695, 52204), (8060, 43363), (8420, 41509), (10946, 31930), (12772, 27365), (13051, 26780), (13390, 26102), (15965, 21892)]