19628735

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 28262400

約数和(自身を除く): 8633665

約数列:

[1, 5, 7, 31, 35, 79, 155, 217, 229, 395, 553, 1085, 1145, 1603, 2449, 2765, 7099, 8015, 12245, 17143, 18091, 35495, 49693, 85715, 90455, 126637, 248465, 560821, 633185, 2804105, 3925747, 19628735]

約数ペア:

[(1, 19628735), (5, 3925747), (7, 2804105), (31, 633185), (35, 560821), (79, 248465), (155, 126637), (217, 90455), (229, 85715), (395, 49693), (553, 35495), (1085, 18091), (1145, 17143), (1603, 12245), (2449, 8015), (2765, 7099)]