78682420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2621}}^1$

素因数の和:2728

約数の個数: 48

約数和(自身を含む): 176198400

約数和(自身を除く): 97515980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 2621, 3002, 5242, 6004, 7505, 10484, 13105, 15010, 26210, 30020, 49799, 52420, 99598, 199196, 207059, 248995, 414118, 497990, 828236, 995980, 1035295, 2070590, 3934121, 4141180, 7868242, 15736484, 19670605, 39341210, 78682420]

約数ペア:

[(1, 78682420), (2, 39341210), (4, 19670605), (5, 15736484), (10, 7868242), (19, 4141180), (20, 3934121), (38, 2070590), (76, 1035295), (79, 995980), (95, 828236), (158, 497990), (190, 414118), (316, 248995), (380, 207059), (395, 199196), (790, 99598), (1501, 52420), (1580, 49799), (2621, 30020), (3002, 26210), (5242, 15010), (6004, 13105), (7505, 10484)]