19870256

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 80

約数和(自身を含む): 46663680

約数和(自身を除く): 26793424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 59, 62, 97, 112, 118, 124, 194, 217, 236, 248, 388, 413, 434, 472, 496, 679, 776, 826, 868, 944, 1358, 1552, 1652, 1736, 1829, 2716, 3007, 3304, 3472, 3658, 5432, 5723, 6014, 6608, 7316, 10864, 11446, 12028, 12803, 14632, 21049, 22892, 24056, 25606, 29264, 40061, 42098, 45784, 48112, 51212, 80122, 84196, 91568, 102424, 160244, 168392, 177413, 204848, 320488, 336784, 354826, 640976, 709652, 1241891, 1419304, 2483782, 2838608, 4967564, 9935128, 19870256]

約数ペア:

[(1, 19870256), (2, 9935128), (4, 4967564), (7, 2838608), (8, 2483782), (14, 1419304), (16, 1241891), (28, 709652), (31, 640976), (56, 354826), (59, 336784), (62, 320488), (97, 204848), (112, 177413), (118, 168392), (124, 160244), (194, 102424), (217, 91568), (236, 84196), (248, 80122), (388, 51212), (413, 48112), (434, 45784), (472, 42098), (496, 40061), (679, 29264), (776, 25606), (826, 24056), (868, 22892), (944, 21049), (1358, 14632), (1552, 12803), (1652, 12028), (1736, 11446), (1829, 10864), (2716, 7316), (3007, 6608), (3304, 6014), (3472, 5723), (3658, 5432)]