19605170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{631}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 18618190

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 239, 478, 631, 1195, 1262, 2390, 3107, 3155, 6214, 6310, 8203, 15535, 16406, 31070, 41015, 82030, 150809, 301618, 754045, 1508090, 1960517, 3921034, 9802585, 19605170]

約数ペア:

[(1, 19605170), (2, 9802585), (5, 3921034), (10, 1960517), (13, 1508090), (26, 754045), (65, 301618), (130, 150809), (239, 82030), (478, 41015), (631, 31070), (1195, 16406), (1262, 15535), (2390, 8203), (3107, 6310), (3155, 6214)]