20893680

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{569}}^1$

素因数の和:608

約数の個数: 160

約数和(自身を含む): 76334400

約数和(自身を除く): 55440720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 85, 90, 102, 108, 120, 135, 136, 144, 153, 170, 180, 204, 216, 240, 255, 270, 272, 306, 340, 360, 408, 432, 459, 510, 540, 569, 612, 680, 720, 765, 816, 918, 1020, 1080, 1138, 1224, 1360, 1530, 1707, 1836, 2040, 2160, 2276, 2295, 2448, 2845, 3060, 3414, 3672, 4080, 4552, 4590, 5121, 5690, 6120, 6828, 7344, 8535, 9104, 9180, 9673, 10242, 11380, 12240, 13656, 15363, 17070, 18360, 19346, 20484, 22760, 25605, 27312, 29019, 30726, 34140, 36720, 38692, 40968, 45520, 48365, 51210, 58038, 61452, 68280, 76815, 77384, 81936, 87057, 96730, 102420, 116076, 122904, 136560, 145095, 153630, 154768, 174114, 193460, 204840, 232152, 245808, 261171, 290190, 307260, 348228, 386920, 409680, 435285, 464304, 522342, 580380, 614520, 696456, 773840, 870570, 1044684, 1160760, 1229040, 1305855, 1392912, 1741140, 2089368, 2321520, 2611710, 3482280, 4178736, 5223420, 6964560, 10446840, 20893680]

約数ペア:

[(1, 20893680), (2, 10446840), (3, 6964560), (4, 5223420), (5, 4178736), (6, 3482280), (8, 2611710), (9, 2321520), (10, 2089368), (12, 1741140), (15, 1392912), (16, 1305855), (17, 1229040), (18, 1160760), (20, 1044684), (24, 870570), (27, 773840), (30, 696456), (34, 614520), (36, 580380), (40, 522342), (45, 464304), (48, 435285), (51, 409680), (54, 386920), (60, 348228), (68, 307260), (72, 290190), (80, 261171), (85, 245808), (90, 232152), (102, 204840), (108, 193460), (120, 174114), (135, 154768), (136, 153630), (144, 145095), (153, 136560), (170, 122904), (180, 116076), (204, 102420), (216, 96730), (240, 87057), (255, 81936), (270, 77384), (272, 76815), (306, 68280), (340, 61452), (360, 58038), (408, 51210), (432, 48365), (459, 45520), (510, 40968), (540, 38692), (569, 36720), (612, 34140), (680, 30726), (720, 29019), (765, 27312), (816, 25605), (918, 22760), (1020, 20484), (1080, 19346), (1138, 18360), (1224, 17070), (1360, 15363), (1530, 13656), (1707, 12240), (1836, 11380), (2040, 10242), (2160, 9673), (2276, 9180), (2295, 9104), (2448, 8535), (2845, 7344), (3060, 6828), (3414, 6120), (3672, 5690), (4080, 5121), (4552, 4590)]