1581120

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{61}}^1$

素因数の和:90

約数の個数: 140

約数和(自身を含む): 5716524

約数和(自身を除く): 4135404

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 61, 64, 72, 80, 81, 90, 96, 108, 120, 122, 135, 144, 160, 162, 180, 183, 192, 216, 240, 244, 270, 288, 305, 320, 324, 360, 366, 405, 432, 480, 488, 540, 549, 576, 610, 648, 720, 732, 810, 864, 915, 960, 976, 1080, 1098, 1220, 1296, 1440, 1464, 1620, 1647, 1728, 1830, 1952, 2160, 2196, 2440, 2592, 2745, 2880, 2928, 3240, 3294, 3660, 3904, 4320, 4392, 4880, 4941, 5184, 5490, 5856, 6480, 6588, 7320, 8235, 8640, 8784, 9760, 9882, 10980, 11712, 12960, 13176, 14640, 16470, 17568, 19520, 19764, 21960, 24705, 25920, 26352, 29280, 32940, 35136, 39528, 43920, 49410, 52704, 58560, 65880, 79056, 87840, 98820, 105408, 131760, 158112, 175680, 197640, 263520, 316224, 395280, 527040, 790560, 1581120]

約数ペア:

[(1, 1581120), (2, 790560), (3, 527040), (4, 395280), (5, 316224), (6, 263520), (8, 197640), (9, 175680), (10, 158112), (12, 131760), (15, 105408), (16, 98820), (18, 87840), (20, 79056), (24, 65880), (27, 58560), (30, 52704), (32, 49410), (36, 43920), (40, 39528), (45, 35136), (48, 32940), (54, 29280), (60, 26352), (61, 25920), (64, 24705), (72, 21960), (80, 19764), (81, 19520), (90, 17568), (96, 16470), (108, 14640), (120, 13176), (122, 12960), (135, 11712), (144, 10980), (160, 9882), (162, 9760), (180, 8784), (183, 8640), (192, 8235), (216, 7320), (240, 6588), (244, 6480), (270, 5856), (288, 5490), (305, 5184), (320, 4941), (324, 4880), (360, 4392), (366, 4320), (405, 3904), (432, 3660), (480, 3294), (488, 3240), (540, 2928), (549, 2880), (576, 2745), (610, 2592), (648, 2440), (720, 2196), (732, 2160), (810, 1952), (864, 1830), (915, 1728), (960, 1647), (976, 1620), (1080, 1464), (1098, 1440), (1220, 1296)]