521260880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:445

約数の個数: 160

約数和(自身を含む): 1442907648

約数和(自身を除く): 921646768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 73, 80, 82, 112, 140, 146, 164, 205, 280, 287, 292, 311, 328, 365, 410, 511, 560, 574, 584, 622, 656, 730, 820, 1022, 1148, 1168, 1244, 1435, 1460, 1555, 1640, 2044, 2177, 2296, 2488, 2555, 2870, 2920, 2993, 3110, 3280, 4088, 4354, 4592, 4976, 5110, 5740, 5840, 5986, 6220, 8176, 8708, 10220, 10885, 11480, 11972, 12440, 12751, 14965, 17416, 20440, 20951, 21770, 22703, 22960, 23944, 24880, 25502, 29930, 34832, 40880, 41902, 43540, 45406, 47888, 51004, 59860, 63755, 83804, 87080, 89257, 90812, 102008, 104755, 113515, 119720, 127510, 158921, 167608, 174160, 178514, 181624, 204016, 209510, 227030, 239440, 255020, 317842, 335216, 357028, 363248, 419020, 446285, 454060, 510040, 635684, 714056, 794605, 838040, 892570, 908120, 930823, 1020080, 1271368, 1428112, 1589210, 1676080, 1785140, 1816240, 1861646, 2542736, 3178420, 3570280, 3723292, 4654115, 6356840, 6515761, 7140560, 7446584, 9308230, 12713680, 13031522, 14893168, 18616460, 26063044, 32578805, 37232920, 52126088, 65157610, 74465840, 104252176, 130315220, 260630440, 521260880]

約数ペア:

[(1, 521260880), (2, 260630440), (4, 130315220), (5, 104252176), (7, 74465840), (8, 65157610), (10, 52126088), (14, 37232920), (16, 32578805), (20, 26063044), (28, 18616460), (35, 14893168), (40, 13031522), (41, 12713680), (56, 9308230), (70, 7446584), (73, 7140560), (80, 6515761), (82, 6356840), (112, 4654115), (140, 3723292), (146, 3570280), (164, 3178420), (205, 2542736), (280, 1861646), (287, 1816240), (292, 1785140), (311, 1676080), (328, 1589210), (365, 1428112), (410, 1271368), (511, 1020080), (560, 930823), (574, 908120), (584, 892570), (622, 838040), (656, 794605), (730, 714056), (820, 635684), (1022, 510040), (1148, 454060), (1168, 446285), (1244, 419020), (1435, 363248), (1460, 357028), (1555, 335216), (1640, 317842), (2044, 255020), (2177, 239440), (2296, 227030), (2488, 209510), (2555, 204016), (2870, 181624), (2920, 178514), (2993, 174160), (3110, 167608), (3280, 158921), (4088, 127510), (4354, 119720), (4592, 113515), (4976, 104755), (5110, 102008), (5740, 90812), (5840, 89257), (5986, 87080), (6220, 83804), (8176, 63755), (8708, 59860), (10220, 51004), (10885, 47888), (11480, 45406), (11972, 43540), (12440, 41902), (12751, 40880), (14965, 34832), (17416, 29930), (20440, 25502), (20951, 24880), (21770, 23944), (22703, 22960)]