19128240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:907

約数の個数: 120

約数和(自身を含む): 66388608

約数和(自身を除く): 47260368

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 857, 930, 1116, 1240, 1395, 1488, 1714, 1860, 2232, 2480, 2571, 2790, 3428, 3720, 4285, 4464, 5142, 5580, 6856, 7440, 7713, 8570, 10284, 11160, 12855, 13712, 15426, 17140, 20568, 22320, 25710, 26567, 30852, 34280, 38565, 41136, 51420, 53134, 61704, 68560, 77130, 79701, 102840, 106268, 123408, 132835, 154260, 159402, 205680, 212536, 239103, 265670, 308520, 318804, 398505, 425072, 478206, 531340, 617040, 637608, 797010, 956412, 1062680, 1195515, 1275216, 1594020, 1912824, 2125360, 2391030, 3188040, 3825648, 4782060, 6376080, 9564120, 19128240]

約数ペア:

[(1, 19128240), (2, 9564120), (3, 6376080), (4, 4782060), (5, 3825648), (6, 3188040), (8, 2391030), (9, 2125360), (10, 1912824), (12, 1594020), (15, 1275216), (16, 1195515), (18, 1062680), (20, 956412), (24, 797010), (30, 637608), (31, 617040), (36, 531340), (40, 478206), (45, 425072), (48, 398505), (60, 318804), (62, 308520), (72, 265670), (80, 239103), (90, 212536), (93, 205680), (120, 159402), (124, 154260), (144, 132835), (155, 123408), (180, 106268), (186, 102840), (240, 79701), (248, 77130), (279, 68560), (310, 61704), (360, 53134), (372, 51420), (465, 41136), (496, 38565), (558, 34280), (620, 30852), (720, 26567), (744, 25710), (857, 22320), (930, 20568), (1116, 17140), (1240, 15426), (1395, 13712), (1488, 12855), (1714, 11160), (1860, 10284), (2232, 8570), (2480, 7713), (2571, 7440), (2790, 6856), (3428, 5580), (3720, 5142), (4285, 4464)]