402378760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:507

約数の個数: 128

約数和(自身を含む): 1078640640

約数和(自身を除く): 676261880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 151, 155, 217, 248, 280, 302, 307, 310, 434, 604, 614, 620, 755, 868, 1057, 1085, 1208, 1228, 1240, 1510, 1535, 1736, 2114, 2149, 2170, 2456, 3020, 3070, 4228, 4298, 4340, 4681, 5285, 6040, 6140, 8456, 8596, 8680, 9362, 9517, 10570, 10745, 12280, 17192, 18724, 19034, 21140, 21490, 23405, 32767, 37448, 38068, 42280, 42980, 46357, 46810, 47585, 65534, 66619, 76136, 85960, 92714, 93620, 95170, 131068, 133238, 163835, 185428, 187240, 190340, 231785, 262136, 266476, 324499, 327670, 333095, 370856, 380680, 463570, 532952, 648998, 655340, 666190, 927140, 1297996, 1310680, 1332380, 1437067, 1622495, 1854280, 2595992, 2664760, 2874134, 3244990, 5748268, 6489980, 7185335, 10059469, 11496536, 12979960, 14370670, 20118938, 28741340, 40237876, 50297345, 57482680, 80475752, 100594690, 201189380, 402378760]

約数ペア:

[(1, 402378760), (2, 201189380), (4, 100594690), (5, 80475752), (7, 57482680), (8, 50297345), (10, 40237876), (14, 28741340), (20, 20118938), (28, 14370670), (31, 12979960), (35, 11496536), (40, 10059469), (56, 7185335), (62, 6489980), (70, 5748268), (124, 3244990), (140, 2874134), (151, 2664760), (155, 2595992), (217, 1854280), (248, 1622495), (280, 1437067), (302, 1332380), (307, 1310680), (310, 1297996), (434, 927140), (604, 666190), (614, 655340), (620, 648998), (755, 532952), (868, 463570), (1057, 380680), (1085, 370856), (1208, 333095), (1228, 327670), (1240, 324499), (1510, 266476), (1535, 262136), (1736, 231785), (2114, 190340), (2149, 187240), (2170, 185428), (2456, 163835), (3020, 133238), (3070, 131068), (4228, 95170), (4298, 93620), (4340, 92714), (4681, 85960), (5285, 76136), (6040, 66619), (6140, 65534), (8456, 47585), (8596, 46810), (8680, 46357), (9362, 42980), (9517, 42280), (10570, 38068), (10745, 37448), (12280, 32767), (17192, 23405), (18724, 21490), (19034, 21140)]