215205122020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25199663}}^1$

素因数の和:25199740

約数の個数: 48

約数和(自身を含む): 524959400448

約数和(自身を除く): 309754278428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 25199663, 50399326, 100798652, 125998315, 176397641, 251996630, 352795282, 503993260, 705590564, 881988205, 1537179443, 1763976410, 3074358886, 3527952820, 6148717772, 7685897215, 10760256101, 15371794430, 21520512202, 30743588860, 43041024404, 53801280505, 107602561010, 215205122020]

約数ペア:

[(1, 215205122020), (2, 107602561010), (4, 53801280505), (5, 43041024404), (7, 30743588860), (10, 21520512202), (14, 15371794430), (20, 10760256101), (28, 7685897215), (35, 6148717772), (61, 3527952820), (70, 3074358886), (122, 1763976410), (140, 1537179443), (244, 881988205), (305, 705590564), (427, 503993260), (610, 352795282), (854, 251996630), (1220, 176397641), (1708, 125998315), (2135, 100798652), (4270, 50399326), (8540, 25199663)]