172894020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221659}}^1$

素因数の和:221684

約数の個数: 48

約数和(自身を含む): 521344320

約数和(自身を除く): 348450300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 221659, 443318, 664977, 886636, 1108295, 1329954, 2216590, 2659908, 2881567, 3324885, 4433180, 5763134, 6649770, 8644701, 11526268, 13299540, 14407835, 17289402, 28815670, 34578804, 43223505, 57631340, 86447010, 172894020]

約数ペア:

[(1, 172894020), (2, 86447010), (3, 57631340), (4, 43223505), (5, 34578804), (6, 28815670), (10, 17289402), (12, 14407835), (13, 13299540), (15, 11526268), (20, 8644701), (26, 6649770), (30, 5763134), (39, 4433180), (52, 3324885), (60, 2881567), (65, 2659908), (78, 2216590), (130, 1329954), (156, 1108295), (195, 886636), (260, 664977), (390, 443318), (780, 221659)]