204990080

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:346

約数の個数: 128

約数和(自身を含む): 527446080

約数和(自身を除く): 322456000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 83, 85, 128, 136, 160, 166, 170, 227, 272, 320, 332, 340, 415, 454, 544, 640, 664, 680, 830, 908, 1088, 1135, 1328, 1360, 1411, 1660, 1816, 2176, 2270, 2656, 2720, 2822, 3320, 3632, 3859, 4540, 5312, 5440, 5644, 6640, 7055, 7264, 7718, 9080, 10624, 10880, 11288, 13280, 14110, 14528, 15436, 18160, 18841, 19295, 22576, 26560, 28220, 29056, 30872, 36320, 37682, 38590, 45152, 53120, 56440, 61744, 72640, 75364, 77180, 90304, 94205, 112880, 123488, 145280, 150728, 154360, 180608, 188410, 225760, 246976, 301456, 308720, 320297, 376820, 451520, 493952, 602912, 617440, 640594, 753640, 903040, 1205824, 1234880, 1281188, 1507280, 1601485, 2411648, 2469760, 2562376, 3014560, 3202970, 5124752, 6029120, 6405940, 10249504, 12058240, 12811880, 20499008, 25623760, 40998016, 51247520, 102495040, 204990080]

約数ペア:

[(1, 204990080), (2, 102495040), (4, 51247520), (5, 40998016), (8, 25623760), (10, 20499008), (16, 12811880), (17, 12058240), (20, 10249504), (32, 6405940), (34, 6029120), (40, 5124752), (64, 3202970), (68, 3014560), (80, 2562376), (83, 2469760), (85, 2411648), (128, 1601485), (136, 1507280), (160, 1281188), (166, 1234880), (170, 1205824), (227, 903040), (272, 753640), (320, 640594), (332, 617440), (340, 602912), (415, 493952), (454, 451520), (544, 376820), (640, 320297), (664, 308720), (680, 301456), (830, 246976), (908, 225760), (1088, 188410), (1135, 180608), (1328, 154360), (1360, 150728), (1411, 145280), (1660, 123488), (1816, 112880), (2176, 94205), (2270, 90304), (2656, 77180), (2720, 75364), (2822, 72640), (3320, 61744), (3632, 56440), (3859, 53120), (4540, 45152), (5312, 38590), (5440, 37682), (5644, 36320), (6640, 30872), (7055, 29056), (7264, 28220), (7718, 26560), (9080, 22576), (10624, 19295), (10880, 18841), (11288, 18160), (13280, 15436), (14110, 14528)]