19915320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{165961}}^1$

素因数の和:165975

約数の個数: 32

約数和(自身を含む): 59746320

約数和(自身を除く): 39831000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 165961, 331922, 497883, 663844, 829805, 995766, 1327688, 1659610, 1991532, 2489415, 3319220, 3983064, 4978830, 6638440, 9957660, 19915320]

約数ペア:

[(1, 19915320), (2, 9957660), (3, 6638440), (4, 4978830), (5, 3983064), (6, 3319220), (8, 2489415), (10, 1991532), (12, 1659610), (15, 1327688), (20, 995766), (24, 829805), (30, 663844), (40, 497883), (60, 331922), (120, 165961)]