20178130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 23948078

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 83, 115, 151, 161, 166, 230, 302, 322, 415, 581, 755, 805, 830, 1057, 1162, 1510, 1610, 1909, 2114, 2905, 3473, 3818, 5285, 5810, 6946, 9545, 10570, 12533, 13363, 17365, 19090, 24311, 25066, 26726, 34730, 48622, 62665, 66815, 87731, 121555, 125330, 133630, 175462, 243110, 288259, 438655, 576518, 877310, 1441295, 2017813, 2882590, 4035626, 10089065, 20178130]

約数ペア:

[(1, 20178130), (2, 10089065), (5, 4035626), (7, 2882590), (10, 2017813), (14, 1441295), (23, 877310), (35, 576518), (46, 438655), (70, 288259), (83, 243110), (115, 175462), (151, 133630), (161, 125330), (166, 121555), (230, 87731), (302, 66815), (322, 62665), (415, 48622), (581, 34730), (755, 26726), (805, 25066), (830, 24311), (1057, 19090), (1162, 17365), (1510, 13363), (1610, 12533), (1909, 10570), (2114, 9545), (2905, 6946), (3473, 5810), (3818, 5285)]