1214356420

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 2570400000

約数和(自身を除く): 1356043580

約数列:

[1, 2, 4, 5, 10, 20, 271, 449, 499, 542, 898, 998, 1084, 1355, 1796, 1996, 2245, 2495, 2710, 4490, 4990, 5420, 8980, 9980, 121679, 135229, 224051, 243358, 270458, 448102, 486716, 540916, 608395, 676145, 896204, 1120255, 1216790, 1352290, 2240510, 2433580, 2704580, 4481020, 60717821, 121435642, 242871284, 303589105, 607178210, 1214356420]

約数ペア:

[(1, 1214356420), (2, 607178210), (4, 303589105), (5, 242871284), (10, 121435642), (20, 60717821), (271, 4481020), (449, 2704580), (499, 2433580), (542, 2240510), (898, 1352290), (998, 1216790), (1084, 1120255), (1355, 896204), (1796, 676145), (1996, 608395), (2245, 540916), (2495, 486716), (2710, 448102), (4490, 270458), (4990, 243358), (5420, 224051), (8980, 135229), (9980, 121679)]