201449720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:968

約数の個数: 64

約数和(自身を含む): 465393600

約数和(自身を除く): 263943880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 89, 142, 178, 284, 355, 356, 445, 568, 710, 712, 797, 890, 1420, 1594, 1780, 2840, 3188, 3560, 3985, 6319, 6376, 7970, 12638, 15940, 25276, 31595, 31880, 50552, 56587, 63190, 70933, 113174, 126380, 141866, 226348, 252760, 282935, 283732, 354665, 452696, 565870, 567464, 709330, 1131740, 1418660, 2263480, 2837320, 5036243, 10072486, 20144972, 25181215, 40289944, 50362430, 100724860, 201449720]

約数ペア:

[(1, 201449720), (2, 100724860), (4, 50362430), (5, 40289944), (8, 25181215), (10, 20144972), (20, 10072486), (40, 5036243), (71, 2837320), (89, 2263480), (142, 1418660), (178, 1131740), (284, 709330), (355, 567464), (356, 565870), (445, 452696), (568, 354665), (710, 283732), (712, 282935), (797, 252760), (890, 226348), (1420, 141866), (1594, 126380), (1780, 113174), (2840, 70933), (3188, 63190), (3560, 56587), (3985, 50552), (6319, 31880), (6376, 31595), (7970, 25276), (12638, 15940)]