28938390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74201}}^1$

素因数の和:74224

約数の個数: 32

約数和(自身を含む): 74795616

約数和(自身を除く): 45857226

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 74201, 148402, 222603, 371005, 445206, 742010, 964613, 1113015, 1929226, 2226030, 2893839, 4823065, 5787678, 9646130, 14469195, 28938390]

約数ペア:

[(1, 28938390), (2, 14469195), (3, 9646130), (5, 5787678), (6, 4823065), (10, 2893839), (13, 2226030), (15, 1929226), (26, 1113015), (30, 964613), (39, 742010), (65, 445206), (78, 371005), (130, 222603), (195, 148402), (390, 74201)]