20809230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 54250560

約数和(自身を除く): 33441330

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 229, 233, 390, 458, 466, 687, 699, 1145, 1165, 1374, 1398, 2290, 2330, 2977, 3029, 3435, 3495, 5954, 6058, 6870, 6990, 8931, 9087, 14885, 15145, 17862, 18174, 29770, 30290, 44655, 45435, 53357, 89310, 90870, 106714, 160071, 266785, 320142, 533570, 693641, 800355, 1387282, 1600710, 2080923, 3468205, 4161846, 6936410, 10404615, 20809230]

約数ペア:

[(1, 20809230), (2, 10404615), (3, 6936410), (5, 4161846), (6, 3468205), (10, 2080923), (13, 1600710), (15, 1387282), (26, 800355), (30, 693641), (39, 533570), (65, 320142), (78, 266785), (130, 160071), (195, 106714), (229, 90870), (233, 89310), (390, 53357), (458, 45435), (466, 44655), (687, 30290), (699, 29770), (1145, 18174), (1165, 17862), (1374, 15145), (1398, 14885), (2290, 9087), (2330, 8931), (2977, 6990), (3029, 6870), (3435, 6058), (3495, 5954)]