209195440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1259}}^1$

素因数の和:1370

約数の個数: 80

約数和(自身を含む): 509967360

約数和(自身を除く): 300771920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 67, 80, 124, 134, 155, 248, 268, 310, 335, 496, 536, 620, 670, 1072, 1240, 1259, 1340, 2077, 2480, 2518, 2680, 4154, 5036, 5360, 6295, 8308, 10072, 10385, 12590, 16616, 20144, 20770, 25180, 33232, 39029, 41540, 50360, 78058, 83080, 84353, 100720, 156116, 166160, 168706, 195145, 312232, 337412, 390290, 421765, 624464, 674824, 780580, 843530, 1349648, 1561160, 1687060, 2614943, 3122320, 3374120, 5229886, 6748240, 10459772, 13074715, 20919544, 26149430, 41839088, 52298860, 104597720, 209195440]

約数ペア:

[(1, 209195440), (2, 104597720), (4, 52298860), (5, 41839088), (8, 26149430), (10, 20919544), (16, 13074715), (20, 10459772), (31, 6748240), (40, 5229886), (62, 3374120), (67, 3122320), (80, 2614943), (124, 1687060), (134, 1561160), (155, 1349648), (248, 843530), (268, 780580), (310, 674824), (335, 624464), (496, 421765), (536, 390290), (620, 337412), (670, 312232), (1072, 195145), (1240, 168706), (1259, 166160), (1340, 156116), (2077, 100720), (2480, 84353), (2518, 83080), (2680, 78058), (4154, 50360), (5036, 41540), (5360, 39029), (6295, 33232), (8308, 25180), (10072, 20770), (10385, 20144), (12590, 16616)]