397803460

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{839}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 847284480

約数和(自身を除く): 449481020

約数列:

[1, 2, 4, 5, 10, 20, 151, 157, 302, 314, 604, 628, 755, 785, 839, 1510, 1570, 1678, 3020, 3140, 3356, 4195, 8390, 16780, 23707, 47414, 94828, 118535, 126689, 131723, 237070, 253378, 263446, 474140, 506756, 526892, 633445, 658615, 1266890, 1317230, 2533780, 2634460, 19890173, 39780346, 79560692, 99450865, 198901730, 397803460]

約数ペア:

[(1, 397803460), (2, 198901730), (4, 99450865), (5, 79560692), (10, 39780346), (20, 19890173), (151, 2634460), (157, 2533780), (302, 1317230), (314, 1266890), (604, 658615), (628, 633445), (755, 526892), (785, 506756), (839, 474140), (1510, 263446), (1570, 253378), (1678, 237070), (3020, 131723), (3140, 126689), (3356, 118535), (4195, 94828), (8390, 47414), (16780, 23707)]