78123720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21001}}^1$

素因数の和:21046

約数の個数: 64

約数和(自身を含む): 241943040

約数和(自身を除く): 163819320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 21001, 42002, 63003, 84004, 105005, 126006, 168008, 210010, 252012, 315015, 420020, 504024, 630030, 651031, 840040, 1260060, 1302062, 1953093, 2520120, 2604124, 3255155, 3906186, 5208248, 6510310, 7812372, 9765465, 13020620, 15624744, 19530930, 26041240, 39061860, 78123720]

約数ペア:

[(1, 78123720), (2, 39061860), (3, 26041240), (4, 19530930), (5, 15624744), (6, 13020620), (8, 9765465), (10, 7812372), (12, 6510310), (15, 5208248), (20, 3906186), (24, 3255155), (30, 2604124), (31, 2520120), (40, 1953093), (60, 1302062), (62, 1260060), (93, 840040), (120, 651031), (124, 630030), (155, 504024), (186, 420020), (248, 315015), (310, 252012), (372, 210010), (465, 168008), (620, 126006), (744, 105005), (930, 84004), (1240, 63003), (1860, 42002), (3720, 21001)]