85821020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{929}}^1$

素因数の和:1118

約数の個数: 48

約数和(自身を含む): 187488000

約数和(自身を除く): 101666980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 745, 929, 1490, 1858, 2980, 3716, 4619, 4645, 9238, 9290, 18476, 18580, 23095, 28799, 46190, 57598, 92380, 115196, 138421, 143995, 276842, 287990, 553684, 575980, 692105, 1384210, 2768420, 4291051, 8582102, 17164204, 21455255, 42910510, 85821020]

約数ペア:

[(1, 85821020), (2, 42910510), (4, 21455255), (5, 17164204), (10, 8582102), (20, 4291051), (31, 2768420), (62, 1384210), (124, 692105), (149, 575980), (155, 553684), (298, 287990), (310, 276842), (596, 143995), (620, 138421), (745, 115196), (929, 92380), (1490, 57598), (1858, 46190), (2980, 28799), (3716, 23095), (4619, 18580), (4645, 18476), (9238, 9290)]