390780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:195

約数の個数: 72

約数和(自身を含む): 1284192

約数和(自身を除く): 893412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 167, 180, 195, 234, 260, 334, 390, 468, 501, 585, 668, 780, 835, 1002, 1170, 1503, 1670, 2004, 2171, 2340, 2505, 3006, 3340, 4342, 5010, 6012, 6513, 7515, 8684, 10020, 10855, 13026, 15030, 19539, 21710, 26052, 30060, 32565, 39078, 43420, 65130, 78156, 97695, 130260, 195390, 390780]

約数ペア:

[(1, 390780), (2, 195390), (3, 130260), (4, 97695), (5, 78156), (6, 65130), (9, 43420), (10, 39078), (12, 32565), (13, 30060), (15, 26052), (18, 21710), (20, 19539), (26, 15030), (30, 13026), (36, 10855), (39, 10020), (45, 8684), (52, 7515), (60, 6513), (65, 6012), (78, 5010), (90, 4342), (117, 3340), (130, 3006), (156, 2505), (167, 2340), (180, 2171), (195, 2004), (234, 1670), (260, 1503), (334, 1170), (390, 1002), (468, 835), (501, 780), (585, 668)]