19780696

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4639}}^1$

素因数の和:4699

約数の個数: 32

約数和(自身を含む): 40924800

約数和(自身を除く): 21144104

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4639, 9278, 18556, 37112, 60307, 120614, 190199, 241228, 380398, 482456, 760796, 1521592, 2472587, 4945174, 9890348, 19780696]

約数ペア:

[(1, 19780696), (2, 9890348), (4, 4945174), (8, 2472587), (13, 1521592), (26, 760796), (41, 482456), (52, 380398), (82, 241228), (104, 190199), (164, 120614), (328, 60307), (533, 37112), (1066, 18556), (2132, 9278), (4264, 4639)]