120628720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1301}}^1$

素因数の和:1394

約数の個数: 80

約数和(自身を含む): 300293280

約数和(自身を除く): 179664560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 488, 610, 760, 976, 1159, 1220, 1301, 1520, 2318, 2440, 2602, 4636, 4880, 5204, 5795, 6505, 9272, 10408, 11590, 13010, 18544, 20816, 23180, 24719, 26020, 46360, 49438, 52040, 79361, 92720, 98876, 104080, 123595, 158722, 197752, 247190, 317444, 395504, 396805, 494380, 634888, 793610, 988760, 1269776, 1507859, 1587220, 1977520, 3015718, 3174440, 6031436, 6348880, 7539295, 12062872, 15078590, 24125744, 30157180, 60314360, 120628720]

約数ペア:

[(1, 120628720), (2, 60314360), (4, 30157180), (5, 24125744), (8, 15078590), (10, 12062872), (16, 7539295), (19, 6348880), (20, 6031436), (38, 3174440), (40, 3015718), (61, 1977520), (76, 1587220), (80, 1507859), (95, 1269776), (122, 988760), (152, 793610), (190, 634888), (244, 494380), (304, 396805), (305, 395504), (380, 317444), (488, 247190), (610, 197752), (760, 158722), (976, 123595), (1159, 104080), (1220, 98876), (1301, 92720), (1520, 79361), (2318, 52040), (2440, 49438), (2602, 46360), (4636, 26020), (4880, 24719), (5204, 23180), (5795, 20816), (6505, 18544), (9272, 13010), (10408, 11590)]