20931430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2729}}^1$

素因数の和:2808

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 20346170

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 118, 130, 295, 590, 767, 1534, 2729, 3835, 5458, 7670, 13645, 27290, 35477, 70954, 161011, 177385, 322022, 354770, 805055, 1610110, 2093143, 4186286, 10465715, 20931430]

約数ペア:

[(1, 20931430), (2, 10465715), (5, 4186286), (10, 2093143), (13, 1610110), (26, 805055), (59, 354770), (65, 322022), (118, 177385), (130, 161011), (295, 70954), (590, 35477), (767, 27290), (1534, 13645), (2729, 7670), (3835, 5458)]