15540840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{881}}^1$

素因数の和:912

約数の個数: 144

約数和(自身を含む): 58820580

約数和(自身を除く): 43279740

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 881, 882, 980, 1176, 1260, 1470, 1762, 1764, 1960, 2205, 2520, 2643, 2940, 3524, 3528, 4405, 4410, 5286, 5880, 6167, 7048, 7929, 8810, 8820, 10572, 12334, 13215, 15858, 17620, 17640, 18501, 21144, 24668, 26430, 30835, 31716, 35240, 37002, 39645, 43169, 49336, 52860, 55503, 61670, 63432, 74004, 79290, 86338, 92505, 105720, 111006, 123340, 129507, 148008, 158580, 172676, 185010, 215845, 222012, 246680, 259014, 277515, 317160, 345352, 370020, 388521, 431690, 444024, 518028, 555030, 647535, 740040, 777042, 863380, 1036056, 1110060, 1295070, 1554084, 1726760, 1942605, 2220120, 2590140, 3108168, 3885210, 5180280, 7770420, 15540840]

約数ペア:

[(1, 15540840), (2, 7770420), (3, 5180280), (4, 3885210), (5, 3108168), (6, 2590140), (7, 2220120), (8, 1942605), (9, 1726760), (10, 1554084), (12, 1295070), (14, 1110060), (15, 1036056), (18, 863380), (20, 777042), (21, 740040), (24, 647535), (28, 555030), (30, 518028), (35, 444024), (36, 431690), (40, 388521), (42, 370020), (45, 345352), (49, 317160), (56, 277515), (60, 259014), (63, 246680), (70, 222012), (72, 215845), (84, 185010), (90, 172676), (98, 158580), (105, 148008), (120, 129507), (126, 123340), (140, 111006), (147, 105720), (168, 92505), (180, 86338), (196, 79290), (210, 74004), (245, 63432), (252, 61670), (280, 55503), (294, 52860), (315, 49336), (360, 43169), (392, 39645), (420, 37002), (441, 35240), (490, 31716), (504, 30835), (588, 26430), (630, 24668), (735, 21144), (840, 18501), (881, 17640), (882, 17620), (980, 15858), (1176, 13215), (1260, 12334), (1470, 10572), (1762, 8820), (1764, 8810), (1960, 7929), (2205, 7048), (2520, 6167), (2643, 5880), (2940, 5286), (3524, 4410), (3528, 4405)]