80511990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3499}}^1$

素因数の和:3581

約数の個数: 64

約数和(自身を含む): 211680000

約数和(自身を除く): 131168010

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 59, 65, 78, 118, 130, 177, 195, 295, 354, 390, 590, 767, 885, 1534, 1770, 2301, 3499, 3835, 4602, 6998, 7670, 10497, 11505, 17495, 20994, 23010, 34990, 45487, 52485, 90974, 104970, 136461, 206441, 227435, 272922, 412882, 454870, 619323, 682305, 1032205, 1238646, 1364610, 2064410, 2683733, 3096615, 5367466, 6193230, 8051199, 13418665, 16102398, 26837330, 40255995, 80511990]

約数ペア:

[(1, 80511990), (2, 40255995), (3, 26837330), (5, 16102398), (6, 13418665), (10, 8051199), (13, 6193230), (15, 5367466), (26, 3096615), (30, 2683733), (39, 2064410), (59, 1364610), (65, 1238646), (78, 1032205), (118, 682305), (130, 619323), (177, 454870), (195, 412882), (295, 272922), (354, 227435), (390, 206441), (590, 136461), (767, 104970), (885, 90974), (1534, 52485), (1770, 45487), (2301, 34990), (3499, 23010), (3835, 20994), (4602, 17495), (6998, 11505), (7670, 10497)]