1278128

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:189

約数の個数: 40

約数和(自身を含む): 2714112

約数和(自身を除く): 1435984

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 68, 74, 127, 136, 148, 254, 272, 296, 508, 592, 629, 1016, 1258, 2032, 2159, 2516, 4318, 4699, 5032, 8636, 9398, 10064, 17272, 18796, 34544, 37592, 75184, 79883, 159766, 319532, 639064, 1278128]

約数ペア:

[(1, 1278128), (2, 639064), (4, 319532), (8, 159766), (16, 79883), (17, 75184), (34, 37592), (37, 34544), (68, 18796), (74, 17272), (127, 10064), (136, 9398), (148, 8636), (254, 5032), (272, 4699), (296, 4318), (508, 2516), (592, 2159), (629, 2032), (1016, 1258)]