16717660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 36372672

約数和(自身を除く): 19655012

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 193, 244, 284, 305, 355, 386, 610, 710, 772, 965, 1220, 1420, 1930, 3860, 4331, 8662, 11773, 13703, 17324, 21655, 23546, 27406, 43310, 47092, 54812, 58865, 68515, 86620, 117730, 137030, 235460, 274060, 835883, 1671766, 3343532, 4179415, 8358830, 16717660]

約数ペア:

[(1, 16717660), (2, 8358830), (4, 4179415), (5, 3343532), (10, 1671766), (20, 835883), (61, 274060), (71, 235460), (122, 137030), (142, 117730), (193, 86620), (244, 68515), (284, 58865), (305, 54812), (355, 47092), (386, 43310), (610, 27406), (710, 23546), (772, 21655), (965, 17324), (1220, 13703), (1420, 11773), (1930, 8662), (3860, 4331)]