989827720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{207947}}^1$

素因数の和:207982

約数の個数: 64

約数和(自身を含む): 2695006080

約数和(自身を除く): 1705178360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4760, 207947, 415894, 831788, 1039735, 1455629, 1663576, 2079470, 2911258, 3535099, 4158940, 5822516, 7070198, 7278145, 8317880, 11645032, 14140396, 14556290, 17675495, 24745693, 28280792, 29112580, 35350990, 49491386, 58225160, 70701980, 98982772, 123728465, 141403960, 197965544, 247456930, 494913860, 989827720]

約数ペア:

[(1, 989827720), (2, 494913860), (4, 247456930), (5, 197965544), (7, 141403960), (8, 123728465), (10, 98982772), (14, 70701980), (17, 58225160), (20, 49491386), (28, 35350990), (34, 29112580), (35, 28280792), (40, 24745693), (56, 17675495), (68, 14556290), (70, 14140396), (85, 11645032), (119, 8317880), (136, 7278145), (140, 7070198), (170, 5822516), (238, 4158940), (280, 3535099), (340, 2911258), (476, 2079470), (595, 1663576), (680, 1455629), (952, 1039735), (1190, 831788), (2380, 415894), (4760, 207947)]