2008763920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{2423}}^1$

素因数の和:2720

約数の個数: 80

約数和(自身を含む): 4800799872

約数和(自身を除く): 2792035952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 241, 344, 430, 482, 688, 860, 964, 1205, 1720, 1928, 2410, 2423, 3440, 3856, 4820, 4846, 9640, 9692, 10363, 12115, 19280, 19384, 20726, 24230, 38768, 41452, 48460, 51815, 82904, 96920, 103630, 104189, 165808, 193840, 207260, 208378, 414520, 416756, 520945, 583943, 829040, 833512, 1041890, 1167886, 1667024, 2083780, 2335772, 2919715, 4167560, 4671544, 5839430, 8335120, 9343088, 11678860, 23357720, 25109549, 46715440, 50219098, 100438196, 125547745, 200876392, 251095490, 401752784, 502190980, 1004381960, 2008763920]

約数ペア:

[(1, 2008763920), (2, 1004381960), (4, 502190980), (5, 401752784), (8, 251095490), (10, 200876392), (16, 125547745), (20, 100438196), (40, 50219098), (43, 46715440), (80, 25109549), (86, 23357720), (172, 11678860), (215, 9343088), (241, 8335120), (344, 5839430), (430, 4671544), (482, 4167560), (688, 2919715), (860, 2335772), (964, 2083780), (1205, 1667024), (1720, 1167886), (1928, 1041890), (2410, 833512), (2423, 829040), (3440, 583943), (3856, 520945), (4820, 416756), (4846, 414520), (9640, 208378), (9692, 207260), (10363, 193840), (12115, 165808), (19280, 104189), (19384, 103630), (20726, 96920), (24230, 82904), (38768, 51815), (41452, 48460)]