19206980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2383}}^1$

素因数の和:2436

約数の個数: 48

約数和(自身を含む): 44857344

約数和(自身を除く): 25650364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 2383, 4030, 4766, 8060, 9532, 11915, 23830, 30979, 47660, 61958, 73873, 123916, 147746, 154895, 295492, 309790, 369365, 619580, 738730, 960349, 1477460, 1920698, 3841396, 4801745, 9603490, 19206980]

約数ペア:

[(1, 19206980), (2, 9603490), (4, 4801745), (5, 3841396), (10, 1920698), (13, 1477460), (20, 960349), (26, 738730), (31, 619580), (52, 369365), (62, 309790), (65, 295492), (124, 154895), (130, 147746), (155, 123916), (260, 73873), (310, 61958), (403, 47660), (620, 30979), (806, 23830), (1612, 11915), (2015, 9532), (2383, 8060), (4030, 4766)]