201921590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{25463}}^1$

素因数の和:25544

約数の個数: 32

約数和(自身を含む): 397849536

約数和(自身を除く): 195927946

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 25463, 50926, 127315, 254630, 331019, 662038, 1553243, 1655095, 3106486, 3310190, 7766215, 15532430, 20192159, 40384318, 100960795, 201921590]

約数ペア:

[(1, 201921590), (2, 100960795), (5, 40384318), (10, 20192159), (13, 15532430), (26, 7766215), (61, 3310190), (65, 3106486), (122, 1655095), (130, 1553243), (305, 662038), (610, 331019), (793, 254630), (1586, 127315), (3965, 50926), (7930, 25463)]