20126190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 55572480

約数和(自身を除く): 35446290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 239, 401, 478, 717, 802, 1195, 1203, 1434, 1673, 2005, 2390, 2406, 2807, 3346, 3585, 4010, 5019, 5614, 6015, 7170, 8365, 8421, 10038, 12030, 14035, 16730, 16842, 25095, 28070, 42105, 50190, 84210, 95839, 191678, 287517, 479195, 575034, 670873, 958390, 1341746, 1437585, 2012619, 2875170, 3354365, 4025238, 6708730, 10063095, 20126190]

約数ペア:

[(1, 20126190), (2, 10063095), (3, 6708730), (5, 4025238), (6, 3354365), (7, 2875170), (10, 2012619), (14, 1437585), (15, 1341746), (21, 958390), (30, 670873), (35, 575034), (42, 479195), (70, 287517), (105, 191678), (210, 95839), (239, 84210), (401, 50190), (478, 42105), (717, 28070), (802, 25095), (1195, 16842), (1203, 16730), (1434, 14035), (1673, 12030), (2005, 10038), (2390, 8421), (2406, 8365), (2807, 7170), (3346, 6015), (3585, 5614), (4010, 5019)]