81649230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209357}}^1$

素因数の和:209380

約数の個数: 32

約数和(自身を含む): 211032864

約数和(自身を除く): 129383634

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 209357, 418714, 628071, 1046785, 1256142, 2093570, 2721641, 3140355, 5443282, 6280710, 8164923, 13608205, 16329846, 27216410, 40824615, 81649230]

約数ペア:

[(1, 81649230), (2, 40824615), (3, 27216410), (5, 16329846), (6, 13608205), (10, 8164923), (13, 6280710), (15, 5443282), (26, 3140355), (30, 2721641), (39, 2093570), (65, 1256142), (78, 1046785), (130, 628071), (195, 418714), (390, 209357)]