20112960

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 224

約数和(自身を含む): 75785472

約数和(自身を除く): 55672512

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 41, 42, 48, 56, 60, 64, 70, 73, 80, 82, 84, 96, 105, 112, 120, 123, 140, 146, 160, 164, 168, 192, 205, 210, 219, 224, 240, 246, 280, 287, 292, 320, 328, 336, 365, 410, 420, 438, 448, 480, 492, 511, 560, 574, 584, 615, 656, 672, 730, 820, 840, 861, 876, 960, 984, 1022, 1095, 1120, 1148, 1168, 1230, 1312, 1344, 1435, 1460, 1533, 1640, 1680, 1722, 1752, 1968, 2044, 2190, 2240, 2296, 2336, 2460, 2555, 2624, 2870, 2920, 2993, 3066, 3280, 3360, 3444, 3504, 3936, 4088, 4305, 4380, 4592, 4672, 4920, 5110, 5740, 5840, 5986, 6132, 6560, 6720, 6888, 7008, 7665, 7872, 8176, 8610, 8760, 8979, 9184, 9840, 10220, 11480, 11680, 11972, 12264, 13120, 13776, 14016, 14965, 15330, 16352, 17220, 17520, 17958, 18368, 19680, 20440, 20951, 22960, 23360, 23944, 24528, 27552, 29930, 30660, 32704, 34440, 35040, 35916, 39360, 40880, 41902, 44895, 45920, 47888, 49056, 55104, 59860, 61320, 62853, 68880, 70080, 71832, 81760, 83804, 89790, 91840, 95776, 98112, 104755, 119720, 122640, 125706, 137760, 143664, 163520, 167608, 179580, 191552, 209510, 239440, 245280, 251412, 275520, 287328, 314265, 335216, 359160, 419020, 478880, 490560, 502824, 574656, 628530, 670432, 718320, 838040, 957760, 1005648, 1257060, 1340864, 1436640, 1676080, 2011296, 2514120, 2873280, 3352160, 4022592, 5028240, 6704320, 10056480, 20112960]

約数ペア:

[(1, 20112960), (2, 10056480), (3, 6704320), (4, 5028240), (5, 4022592), (6, 3352160), (7, 2873280), (8, 2514120), (10, 2011296), (12, 1676080), (14, 1436640), (15, 1340864), (16, 1257060), (20, 1005648), (21, 957760), (24, 838040), (28, 718320), (30, 670432), (32, 628530), (35, 574656), (40, 502824), (41, 490560), (42, 478880), (48, 419020), (56, 359160), (60, 335216), (64, 314265), (70, 287328), (73, 275520), (80, 251412), (82, 245280), (84, 239440), (96, 209510), (105, 191552), (112, 179580), (120, 167608), (123, 163520), (140, 143664), (146, 137760), (160, 125706), (164, 122640), (168, 119720), (192, 104755), (205, 98112), (210, 95776), (219, 91840), (224, 89790), (240, 83804), (246, 81760), (280, 71832), (287, 70080), (292, 68880), (320, 62853), (328, 61320), (336, 59860), (365, 55104), (410, 49056), (420, 47888), (438, 45920), (448, 44895), (480, 41902), (492, 40880), (511, 39360), (560, 35916), (574, 35040), (584, 34440), (615, 32704), (656, 30660), (672, 29930), (730, 27552), (820, 24528), (840, 23944), (861, 23360), (876, 22960), (960, 20951), (984, 20440), (1022, 19680), (1095, 18368), (1120, 17958), (1148, 17520), (1168, 17220), (1230, 16352), (1312, 15330), (1344, 14965), (1435, 14016), (1460, 13776), (1533, 13120), (1640, 12264), (1680, 11972), (1722, 11680), (1752, 11480), (1968, 10220), (2044, 9840), (2190, 9184), (2240, 8979), (2296, 8760), (2336, 8610), (2460, 8176), (2555, 7872), (2624, 7665), (2870, 7008), (2920, 6888), (2993, 6720), (3066, 6560), (3280, 6132), (3360, 5986), (3444, 5840), (3504, 5740), (3936, 5110), (4088, 4920), (4305, 4672), (4380, 4592)]