19642920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:695

約数の個数: 128

約数和(自身を含む): 67184640

約数和(自身を除く): 47541720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 647, 660, 690, 759, 920, 1012, 1265, 1294, 1320, 1380, 1518, 1941, 2024, 2530, 2588, 2760, 3036, 3235, 3795, 3882, 5060, 5176, 6072, 6470, 7117, 7590, 7764, 9705, 10120, 12940, 14234, 14881, 15180, 15528, 19410, 21351, 25880, 28468, 29762, 30360, 35585, 38820, 42702, 44643, 56936, 59524, 71170, 74405, 77640, 85404, 89286, 106755, 119048, 142340, 148810, 163691, 170808, 178572, 213510, 223215, 284680, 297620, 327382, 357144, 427020, 446430, 491073, 595240, 654764, 818455, 854040, 892860, 982146, 1309528, 1636910, 1785720, 1964292, 2455365, 3273820, 3928584, 4910730, 6547640, 9821460, 19642920]

約数ペア:

[(1, 19642920), (2, 9821460), (3, 6547640), (4, 4910730), (5, 3928584), (6, 3273820), (8, 2455365), (10, 1964292), (11, 1785720), (12, 1636910), (15, 1309528), (20, 982146), (22, 892860), (23, 854040), (24, 818455), (30, 654764), (33, 595240), (40, 491073), (44, 446430), (46, 427020), (55, 357144), (60, 327382), (66, 297620), (69, 284680), (88, 223215), (92, 213510), (110, 178572), (115, 170808), (120, 163691), (132, 148810), (138, 142340), (165, 119048), (184, 106755), (220, 89286), (230, 85404), (253, 77640), (264, 74405), (276, 71170), (330, 59524), (345, 56936), (440, 44643), (460, 42702), (506, 38820), (552, 35585), (647, 30360), (660, 29762), (690, 28468), (759, 25880), (920, 21351), (1012, 19410), (1265, 15528), (1294, 15180), (1320, 14881), (1380, 14234), (1518, 12940), (1941, 10120), (2024, 9705), (2530, 7764), (2588, 7590), (2760, 7117), (3036, 6470), (3235, 6072), (3795, 5176), (3882, 5060)]