19951810

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 17787710

約数列:

[1, 2, 5, 10, 23, 46, 115, 223, 230, 389, 446, 778, 1115, 1945, 2230, 3890, 5129, 8947, 10258, 17894, 25645, 44735, 51290, 86747, 89470, 173494, 433735, 867470, 1995181, 3990362, 9975905, 19951810]

約数ペア:

[(1, 19951810), (2, 9975905), (5, 3990362), (10, 1995181), (23, 867470), (46, 433735), (115, 173494), (223, 89470), (230, 86747), (389, 51290), (446, 44735), (778, 25645), (1115, 17894), (1945, 10258), (2230, 8947), (3890, 5129)]