1720794621

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{599}}^1\times {\mathrm{619}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 2999808000

約数和(自身を除く): 1279013379

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 599, 619, 663, 1547, 1797, 1857, 4193, 4333, 4641, 7787, 8047, 10183, 10523, 12579, 12999, 23361, 24141, 30549, 31569, 54509, 56329, 71281, 73661, 132379, 136799, 163527, 168987, 213843, 220983, 370781, 397137, 410397, 926653, 957593, 1112343, 2595467, 2779959, 2872779, 4820153, 6303277, 7786401, 14460459, 18909831, 33741071, 44122939, 81942601, 101223213, 132368817, 245827803, 573598207, 1720794621]

約数ペア:

[(1, 1720794621), (3, 573598207), (7, 245827803), (13, 132368817), (17, 101223213), (21, 81942601), (39, 44122939), (51, 33741071), (91, 18909831), (119, 14460459), (221, 7786401), (273, 6303277), (357, 4820153), (599, 2872779), (619, 2779959), (663, 2595467), (1547, 1112343), (1797, 957593), (1857, 926653), (4193, 410397), (4333, 397137), (4641, 370781), (7787, 220983), (8047, 213843), (10183, 168987), (10523, 163527), (12579, 136799), (12999, 132379), (23361, 73661), (24141, 71281), (30549, 56329), (31569, 54509)]