20880608

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1$

素因数の和:176

約数の個数: 72

約数和(自身を含む): 49046256

約数和(自身を除く): 28165648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 97, 112, 124, 194, 217, 224, 248, 388, 434, 496, 679, 776, 868, 961, 992, 1358, 1552, 1736, 1922, 2716, 3007, 3104, 3472, 3844, 5432, 6014, 6727, 6944, 7688, 10864, 12028, 13454, 15376, 21049, 21728, 24056, 26908, 30752, 42098, 48112, 53816, 84196, 93217, 96224, 107632, 168392, 186434, 215264, 336784, 372868, 652519, 673568, 745736, 1305038, 1491472, 2610076, 2982944, 5220152, 10440304, 20880608]

約数ペア:

[(1, 20880608), (2, 10440304), (4, 5220152), (7, 2982944), (8, 2610076), (14, 1491472), (16, 1305038), (28, 745736), (31, 673568), (32, 652519), (56, 372868), (62, 336784), (97, 215264), (112, 186434), (124, 168392), (194, 107632), (217, 96224), (224, 93217), (248, 84196), (388, 53816), (434, 48112), (496, 42098), (679, 30752), (776, 26908), (868, 24056), (961, 21728), (992, 21049), (1358, 15376), (1552, 13454), (1736, 12028), (1922, 10864), (2716, 7688), (3007, 6944), (3104, 6727), (3472, 6014), (3844, 5432)]