19995310

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1308

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 17889362

約数列:

[1, 2, 5, 10, 31, 53, 62, 106, 155, 265, 310, 530, 1217, 1643, 2434, 3286, 6085, 8215, 12170, 16430, 37727, 64501, 75454, 129002, 188635, 322505, 377270, 645010, 1999531, 3999062, 9997655, 19995310]

約数ペア:

[(1, 19995310), (2, 9997655), (5, 3999062), (10, 1999531), (31, 645010), (53, 377270), (62, 322505), (106, 188635), (155, 129002), (265, 75454), (310, 64501), (530, 37727), (1217, 16430), (1643, 12170), (2434, 8215), (3286, 6085)]