81142390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 176256000

約数和(自身を除く): 95113610

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 101, 115, 161, 202, 230, 322, 499, 505, 707, 805, 998, 1010, 1414, 1610, 2323, 2495, 3493, 3535, 4646, 4990, 6986, 7070, 11477, 11615, 16261, 17465, 22954, 23230, 32522, 34930, 50399, 57385, 80339, 81305, 100798, 114770, 160678, 162610, 251995, 352793, 401695, 503990, 705586, 803390, 1159177, 1763965, 2318354, 3527930, 5795885, 8114239, 11591770, 16228478, 40571195, 81142390]

約数ペア:

[(1, 81142390), (2, 40571195), (5, 16228478), (7, 11591770), (10, 8114239), (14, 5795885), (23, 3527930), (35, 2318354), (46, 1763965), (70, 1159177), (101, 803390), (115, 705586), (161, 503990), (202, 401695), (230, 352793), (322, 251995), (499, 162610), (505, 160678), (707, 114770), (805, 100798), (998, 81305), (1010, 80339), (1414, 57385), (1610, 50399), (2323, 34930), (2495, 32522), (3493, 23230), (3535, 22954), (4646, 17465), (4990, 16261), (6986, 11615), (7070, 11477)]