1390720

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 64

約数和(自身を含む): 3470040

約数和(自身を除く): 2079320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 53, 64, 80, 82, 106, 128, 160, 164, 205, 212, 265, 320, 328, 410, 424, 530, 640, 656, 820, 848, 1060, 1312, 1640, 1696, 2120, 2173, 2624, 3280, 3392, 4240, 4346, 5248, 6560, 6784, 8480, 8692, 10865, 13120, 16960, 17384, 21730, 26240, 33920, 34768, 43460, 69536, 86920, 139072, 173840, 278144, 347680, 695360, 1390720]

約数ペア:

[(1, 1390720), (2, 695360), (4, 347680), (5, 278144), (8, 173840), (10, 139072), (16, 86920), (20, 69536), (32, 43460), (40, 34768), (41, 33920), (53, 26240), (64, 21730), (80, 17384), (82, 16960), (106, 13120), (128, 10865), (160, 8692), (164, 8480), (205, 6784), (212, 6560), (265, 5248), (320, 4346), (328, 4240), (410, 3392), (424, 3280), (530, 2624), (640, 2173), (656, 2120), (820, 1696), (848, 1640), (1060, 1312)]