25278320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18587}}^1$

素因数の和:18617

約数の個数: 40

約数和(自身を含む): 62232624

約数和(自身を除く): 36954304

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 18587, 37174, 74348, 92935, 148696, 185870, 297392, 315979, 371740, 631958, 743480, 1263916, 1486960, 1579895, 2527832, 3159790, 5055664, 6319580, 12639160, 25278320]

約数ペア:

[(1, 25278320), (2, 12639160), (4, 6319580), (5, 5055664), (8, 3159790), (10, 2527832), (16, 1579895), (17, 1486960), (20, 1263916), (34, 743480), (40, 631958), (68, 371740), (80, 315979), (85, 297392), (136, 185870), (170, 148696), (272, 92935), (340, 74348), (680, 37174), (1360, 18587)]