243520720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1061}}^1$

素因数の和:1244

約数の個数: 80

約数和(自身を含む): 600497280

約数和(自身を除く): 356976560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 151, 152, 190, 302, 304, 380, 604, 755, 760, 1061, 1208, 1510, 1520, 2122, 2416, 2869, 3020, 4244, 5305, 5738, 6040, 8488, 10610, 11476, 12080, 14345, 16976, 20159, 21220, 22952, 28690, 40318, 42440, 45904, 57380, 80636, 84880, 100795, 114760, 160211, 161272, 201590, 229520, 320422, 322544, 403180, 640844, 801055, 806360, 1281688, 1602110, 1612720, 2563376, 3044009, 3204220, 6088018, 6408440, 12176036, 12816880, 15220045, 24352072, 30440090, 48704144, 60880180, 121760360, 243520720]

約数ペア:

[(1, 243520720), (2, 121760360), (4, 60880180), (5, 48704144), (8, 30440090), (10, 24352072), (16, 15220045), (19, 12816880), (20, 12176036), (38, 6408440), (40, 6088018), (76, 3204220), (80, 3044009), (95, 2563376), (151, 1612720), (152, 1602110), (190, 1281688), (302, 806360), (304, 801055), (380, 640844), (604, 403180), (755, 322544), (760, 320422), (1061, 229520), (1208, 201590), (1510, 161272), (1520, 160211), (2122, 114760), (2416, 100795), (2869, 84880), (3020, 80636), (4244, 57380), (5305, 45904), (5738, 42440), (6040, 40318), (8488, 28690), (10610, 22952), (11476, 21220), (12080, 20159), (14345, 16976)]