18558240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2$

素因数の和:123

約数の個数: 144

約数和(自身を含む): 62524224

約数和(自身を除く): 43965984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 41, 46, 48, 60, 69, 80, 82, 92, 96, 115, 120, 123, 138, 160, 164, 184, 205, 230, 240, 246, 276, 328, 345, 368, 410, 460, 480, 492, 552, 615, 656, 690, 736, 820, 920, 943, 984, 1104, 1230, 1312, 1380, 1640, 1681, 1840, 1886, 1968, 2208, 2460, 2760, 2829, 3280, 3362, 3680, 3772, 3936, 4715, 4920, 5043, 5520, 5658, 6560, 6724, 7544, 8405, 9430, 9840, 10086, 11040, 11316, 13448, 14145, 15088, 16810, 18860, 19680, 20172, 22632, 25215, 26896, 28290, 30176, 33620, 37720, 38663, 40344, 45264, 50430, 53792, 56580, 67240, 75440, 77326, 80688, 90528, 100860, 113160, 115989, 134480, 150880, 154652, 161376, 193315, 201720, 226320, 231978, 268960, 309304, 386630, 403440, 452640, 463956, 579945, 618608, 773260, 806880, 927912, 1159890, 1237216, 1546520, 1855824, 2319780, 3093040, 3711648, 4639560, 6186080, 9279120, 18558240]

約数ペア:

[(1, 18558240), (2, 9279120), (3, 6186080), (4, 4639560), (5, 3711648), (6, 3093040), (8, 2319780), (10, 1855824), (12, 1546520), (15, 1237216), (16, 1159890), (20, 927912), (23, 806880), (24, 773260), (30, 618608), (32, 579945), (40, 463956), (41, 452640), (46, 403440), (48, 386630), (60, 309304), (69, 268960), (80, 231978), (82, 226320), (92, 201720), (96, 193315), (115, 161376), (120, 154652), (123, 150880), (138, 134480), (160, 115989), (164, 113160), (184, 100860), (205, 90528), (230, 80688), (240, 77326), (246, 75440), (276, 67240), (328, 56580), (345, 53792), (368, 50430), (410, 45264), (460, 40344), (480, 38663), (492, 37720), (552, 33620), (615, 30176), (656, 28290), (690, 26896), (736, 25215), (820, 22632), (920, 20172), (943, 19680), (984, 18860), (1104, 16810), (1230, 15088), (1312, 14145), (1380, 13448), (1640, 11316), (1681, 11040), (1840, 10086), (1886, 9840), (1968, 9430), (2208, 8405), (2460, 7544), (2760, 6724), (2829, 6560), (3280, 5658), (3362, 5520), (3680, 5043), (3772, 4920), (3936, 4715)]