20354508

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:527

約数の個数: 72

約数和(自身を含む): 55298880

約数和(自身を除く): 34944372

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 79, 102, 153, 158, 204, 237, 306, 316, 421, 474, 612, 711, 842, 948, 1263, 1343, 1422, 1684, 2526, 2686, 2844, 3789, 4029, 5052, 5372, 7157, 7578, 8058, 12087, 14314, 15156, 16116, 21471, 24174, 28628, 33259, 42942, 48348, 64413, 66518, 85884, 99777, 128826, 133036, 199554, 257652, 299331, 399108, 565403, 598662, 1130806, 1197324, 1696209, 2261612, 3392418, 5088627, 6784836, 10177254, 20354508]

約数ペア:

[(1, 20354508), (2, 10177254), (3, 6784836), (4, 5088627), (6, 3392418), (9, 2261612), (12, 1696209), (17, 1197324), (18, 1130806), (34, 598662), (36, 565403), (51, 399108), (68, 299331), (79, 257652), (102, 199554), (153, 133036), (158, 128826), (204, 99777), (237, 85884), (306, 66518), (316, 64413), (421, 48348), (474, 42942), (612, 33259), (711, 28628), (842, 24174), (948, 21471), (1263, 16116), (1343, 15156), (1422, 14314), (1684, 12087), (2526, 8058), (2686, 7578), (2844, 7157), (3789, 5372), (4029, 5052)]