81804680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2039}}^1$

素因数の和:2126

約数の個数: 64

約数和(自身を含む): 198288000

約数和(自身を除く): 116483320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 59, 68, 85, 118, 136, 170, 236, 295, 340, 472, 590, 680, 1003, 1180, 2006, 2039, 2360, 4012, 4078, 5015, 8024, 8156, 10030, 10195, 16312, 20060, 20390, 34663, 40120, 40780, 69326, 81560, 120301, 138652, 173315, 240602, 277304, 346630, 481204, 601505, 693260, 962408, 1203010, 1386520, 2045117, 2406020, 4090234, 4812040, 8180468, 10225585, 16360936, 20451170, 40902340, 81804680]

約数ペア:

[(1, 81804680), (2, 40902340), (4, 20451170), (5, 16360936), (8, 10225585), (10, 8180468), (17, 4812040), (20, 4090234), (34, 2406020), (40, 2045117), (59, 1386520), (68, 1203010), (85, 962408), (118, 693260), (136, 601505), (170, 481204), (236, 346630), (295, 277304), (340, 240602), (472, 173315), (590, 138652), (680, 120301), (1003, 81560), (1180, 69326), (2006, 40780), (2039, 40120), (2360, 34663), (4012, 20390), (4078, 20060), (5015, 16312), (8024, 10195), (8156, 10030)]