31197890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 63452160

約数和(自身を除く): 32254270

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 79, 85, 101, 115, 158, 170, 202, 230, 391, 395, 505, 782, 790, 1010, 1343, 1717, 1817, 1955, 2323, 2686, 3434, 3634, 3910, 4646, 6715, 7979, 8585, 9085, 11615, 13430, 15958, 17170, 18170, 23230, 30889, 39491, 39895, 61778, 78982, 79790, 135643, 154445, 183517, 197455, 271286, 308890, 367034, 394910, 678215, 917585, 1356430, 1835170, 3119789, 6239578, 15598945, 31197890]

約数ペア:

[(1, 31197890), (2, 15598945), (5, 6239578), (10, 3119789), (17, 1835170), (23, 1356430), (34, 917585), (46, 678215), (79, 394910), (85, 367034), (101, 308890), (115, 271286), (158, 197455), (170, 183517), (202, 154445), (230, 135643), (391, 79790), (395, 78982), (505, 61778), (782, 39895), (790, 39491), (1010, 30889), (1343, 23230), (1717, 18170), (1817, 17170), (1955, 15958), (2323, 13430), (2686, 11615), (3434, 9085), (3634, 8585), (3910, 7979), (4646, 6715)]