641532480

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15541}}^1$

素因数の和:15604

約数の個数: 112

約数和(自身を含む): 2084368704

約数和(自身を除く): 1442836224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 129, 160, 172, 192, 215, 240, 258, 320, 344, 430, 480, 516, 645, 688, 860, 960, 1032, 1290, 1376, 1720, 2064, 2580, 2752, 3440, 4128, 5160, 6880, 8256, 10320, 13760, 15541, 20640, 31082, 41280, 46623, 62164, 77705, 93246, 124328, 155410, 186492, 233115, 248656, 310820, 372984, 466230, 497312, 621640, 668263, 745968, 932460, 994624, 1243280, 1336526, 1491936, 1864920, 2004789, 2486560, 2673052, 2983872, 3341315, 3729840, 4009578, 4973120, 5346104, 6682630, 7459680, 8019156, 10023945, 10692208, 13365260, 14919360, 16038312, 20047890, 21384416, 26730520, 32076624, 40095780, 42768832, 53461040, 64153248, 80191560, 106922080, 128306496, 160383120, 213844160, 320766240, 641532480]

約数ペア:

[(1, 641532480), (2, 320766240), (3, 213844160), (4, 160383120), (5, 128306496), (6, 106922080), (8, 80191560), (10, 64153248), (12, 53461040), (15, 42768832), (16, 40095780), (20, 32076624), (24, 26730520), (30, 21384416), (32, 20047890), (40, 16038312), (43, 14919360), (48, 13365260), (60, 10692208), (64, 10023945), (80, 8019156), (86, 7459680), (96, 6682630), (120, 5346104), (129, 4973120), (160, 4009578), (172, 3729840), (192, 3341315), (215, 2983872), (240, 2673052), (258, 2486560), (320, 2004789), (344, 1864920), (430, 1491936), (480, 1336526), (516, 1243280), (645, 994624), (688, 932460), (860, 745968), (960, 668263), (1032, 621640), (1290, 497312), (1376, 466230), (1720, 372984), (2064, 310820), (2580, 248656), (2752, 233115), (3440, 186492), (4128, 155410), (5160, 124328), (6880, 93246), (8256, 77705), (10320, 62164), (13760, 46623), (15541, 41280), (20640, 31082)]