31731960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20341}}^1$

素因数の和:20368

約数の個数: 64

約数和(自身を含む): 102523680

約数和(自身を除く): 70791720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20341, 40682, 61023, 81364, 101705, 122046, 162728, 203410, 244092, 264433, 305115, 406820, 488184, 528866, 610230, 793299, 813640, 1057732, 1220460, 1322165, 1586598, 2115464, 2440920, 2644330, 3173196, 3966495, 5288660, 6346392, 7932990, 10577320, 15865980, 31731960]

約数ペア:

[(1, 31731960), (2, 15865980), (3, 10577320), (4, 7932990), (5, 6346392), (6, 5288660), (8, 3966495), (10, 3173196), (12, 2644330), (13, 2440920), (15, 2115464), (20, 1586598), (24, 1322165), (26, 1220460), (30, 1057732), (39, 813640), (40, 793299), (52, 610230), (60, 528866), (65, 488184), (78, 406820), (104, 305115), (120, 264433), (130, 244092), (156, 203410), (195, 162728), (260, 122046), (312, 101705), (390, 81364), (520, 61023), (780, 40682), (1560, 20341)]