28904420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{563}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 64810368

約数和(自身を除く): 35905948

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 151, 170, 302, 340, 563, 604, 755, 1126, 1510, 2252, 2567, 2815, 3020, 5134, 5630, 9571, 10268, 11260, 12835, 19142, 25670, 38284, 47855, 51340, 85013, 95710, 170026, 191420, 340052, 425065, 850130, 1445221, 1700260, 2890442, 5780884, 7226105, 14452210, 28904420]

約数ペア:

[(1, 28904420), (2, 14452210), (4, 7226105), (5, 5780884), (10, 2890442), (17, 1700260), (20, 1445221), (34, 850130), (68, 425065), (85, 340052), (151, 191420), (170, 170026), (302, 95710), (340, 85013), (563, 51340), (604, 47855), (755, 38284), (1126, 25670), (1510, 19142), (2252, 12835), (2567, 11260), (2815, 10268), (3020, 9571), (5134, 5630)]