78356720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1277}}^1$

素因数の和:1362

約数の個数: 80

約数和(自身を含む): 199674720

約数和(自身を除く): 121318000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 295, 472, 520, 590, 767, 944, 1040, 1180, 1277, 1534, 2360, 2554, 3068, 3835, 4720, 5108, 6136, 6385, 7670, 10216, 12272, 12770, 15340, 16601, 20432, 25540, 30680, 33202, 51080, 61360, 66404, 75343, 83005, 102160, 132808, 150686, 166010, 265616, 301372, 332020, 376715, 602744, 664040, 753430, 979459, 1205488, 1328080, 1506860, 1958918, 3013720, 3917836, 4897295, 6027440, 7835672, 9794590, 15671344, 19589180, 39178360, 78356720]

約数ペア:

[(1, 78356720), (2, 39178360), (4, 19589180), (5, 15671344), (8, 9794590), (10, 7835672), (13, 6027440), (16, 4897295), (20, 3917836), (26, 3013720), (40, 1958918), (52, 1506860), (59, 1328080), (65, 1205488), (80, 979459), (104, 753430), (118, 664040), (130, 602744), (208, 376715), (236, 332020), (260, 301372), (295, 265616), (472, 166010), (520, 150686), (590, 132808), (767, 102160), (944, 83005), (1040, 75343), (1180, 66404), (1277, 61360), (1534, 51080), (2360, 33202), (2554, 30680), (3068, 25540), (3835, 20432), (4720, 16601), (5108, 15340), (6136, 12770), (6385, 12272), (7670, 10216)]