231838100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1283}}^1$

素因数の和:1449

約数の個数: 72

約数和(自身を含む): 546110880

約数和(自身を除く): 314272780

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 139, 260, 278, 325, 556, 650, 695, 1283, 1300, 1390, 1807, 2566, 2780, 3475, 3614, 5132, 6415, 6950, 7228, 9035, 12830, 13900, 16679, 18070, 25660, 32075, 33358, 36140, 45175, 64150, 66716, 83395, 90350, 128300, 166790, 178337, 180700, 333580, 356674, 416975, 713348, 833950, 891685, 1667900, 1783370, 2318381, 3566740, 4458425, 4636762, 8916850, 9273524, 11591905, 17833700, 23183810, 46367620, 57959525, 115919050, 231838100]

約数ペア:

[(1, 231838100), (2, 115919050), (4, 57959525), (5, 46367620), (10, 23183810), (13, 17833700), (20, 11591905), (25, 9273524), (26, 8916850), (50, 4636762), (52, 4458425), (65, 3566740), (100, 2318381), (130, 1783370), (139, 1667900), (260, 891685), (278, 833950), (325, 713348), (556, 416975), (650, 356674), (695, 333580), (1283, 180700), (1300, 178337), (1390, 166790), (1807, 128300), (2566, 90350), (2780, 83395), (3475, 66716), (3614, 64150), (5132, 45175), (6415, 36140), (6950, 33358), (7228, 32075), (9035, 25660), (12830, 18070), (13900, 16679)]