20512695590

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1\times {\mathrm{3691}}^1$

素因数の和:4125

約数の個数: 64

約数和(自身を含む): 39184584192

約数和(自身を除く): 18671888602

約数列:

[1, 2, 5, 10, 23, 46, 73, 115, 146, 230, 331, 365, 662, 730, 1655, 1679, 3310, 3358, 3691, 7382, 7613, 8395, 15226, 16790, 18455, 24163, 36910, 38065, 48326, 76130, 84893, 120815, 169786, 241630, 269443, 424465, 538886, 555749, 848930, 1111498, 1221721, 1347215, 2443442, 2694430, 2778745, 5557490, 6108605, 6197189, 12217210, 12394378, 28099583, 30985945, 56199166, 61971890, 89185633, 140497915, 178371266, 280995830, 445928165, 891856330, 2051269559, 4102539118, 10256347795, 20512695590]

約数ペア:

[(1, 20512695590), (2, 10256347795), (5, 4102539118), (10, 2051269559), (23, 891856330), (46, 445928165), (73, 280995830), (115, 178371266), (146, 140497915), (230, 89185633), (331, 61971890), (365, 56199166), (662, 30985945), (730, 28099583), (1655, 12394378), (1679, 12217210), (3310, 6197189), (3358, 6108605), (3691, 5557490), (7382, 2778745), (7613, 2694430), (8395, 2443442), (15226, 1347215), (16790, 1221721), (18455, 1111498), (24163, 848930), (36910, 555749), (38065, 538886), (48326, 424465), (76130, 269443), (84893, 241630), (120815, 169786)]