19752720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{487}}^1$

素因数の和:529

約数の個数: 120

約数和(自身を含む): 66442176

約数和(自身を除く): 46689456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 390, 487, 507, 520, 624, 676, 780, 845, 974, 1014, 1040, 1352, 1461, 1560, 1690, 1948, 2028, 2435, 2535, 2704, 2922, 3120, 3380, 3896, 4056, 4870, 5070, 5844, 6331, 6760, 7305, 7792, 8112, 9740, 10140, 11688, 12662, 13520, 14610, 18993, 19480, 20280, 23376, 25324, 29220, 31655, 37986, 38960, 40560, 50648, 58440, 63310, 75972, 82303, 94965, 101296, 116880, 126620, 151944, 164606, 189930, 246909, 253240, 303888, 329212, 379860, 411515, 493818, 506480, 658424, 759720, 823030, 987636, 1234545, 1316848, 1519440, 1646060, 1975272, 2469090, 3292120, 3950544, 4938180, 6584240, 9876360, 19752720]

約数ペア:

[(1, 19752720), (2, 9876360), (3, 6584240), (4, 4938180), (5, 3950544), (6, 3292120), (8, 2469090), (10, 1975272), (12, 1646060), (13, 1519440), (15, 1316848), (16, 1234545), (20, 987636), (24, 823030), (26, 759720), (30, 658424), (39, 506480), (40, 493818), (48, 411515), (52, 379860), (60, 329212), (65, 303888), (78, 253240), (80, 246909), (104, 189930), (120, 164606), (130, 151944), (156, 126620), (169, 116880), (195, 101296), (208, 94965), (240, 82303), (260, 75972), (312, 63310), (338, 58440), (390, 50648), (487, 40560), (507, 38960), (520, 37986), (624, 31655), (676, 29220), (780, 25324), (845, 23376), (974, 20280), (1014, 19480), (1040, 18993), (1352, 14610), (1461, 13520), (1560, 12662), (1690, 11688), (1948, 10140), (2028, 9740), (2435, 8112), (2535, 7792), (2704, 7305), (2922, 6760), (3120, 6331), (3380, 5844), (3896, 5070), (4056, 4870)]