2018782720

素因数分解:

$2^9\times 5^1\times {\mathrm{53}}^1\times {\mathrm{14879}}^1$

素因数の和:14955

約数の個数: 80

約数和(自身を含む): 4932005760

約数和(自身を除く): 2913223040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 512, 530, 640, 848, 1060, 1280, 1696, 2120, 2560, 3392, 4240, 6784, 8480, 13568, 14879, 16960, 27136, 29758, 33920, 59516, 67840, 74395, 119032, 135680, 148790, 238064, 297580, 476128, 595160, 788587, 952256, 1190320, 1577174, 1904512, 2380640, 3154348, 3809024, 3942935, 4761280, 6308696, 7618048, 7885870, 9522560, 12617392, 15771740, 19045120, 25234784, 31543480, 38090240, 50469568, 63086960, 100939136, 126173920, 201878272, 252347840, 403756544, 504695680, 1009391360, 2018782720]

約数ペア:

[(1, 2018782720), (2, 1009391360), (4, 504695680), (5, 403756544), (8, 252347840), (10, 201878272), (16, 126173920), (20, 100939136), (32, 63086960), (40, 50469568), (53, 38090240), (64, 31543480), (80, 25234784), (106, 19045120), (128, 15771740), (160, 12617392), (212, 9522560), (256, 7885870), (265, 7618048), (320, 6308696), (424, 4761280), (512, 3942935), (530, 3809024), (640, 3154348), (848, 2380640), (1060, 1904512), (1280, 1577174), (1696, 1190320), (2120, 952256), (2560, 788587), (3392, 595160), (4240, 476128), (6784, 297580), (8480, 238064), (13568, 148790), (14879, 135680), (16960, 119032), (27136, 74395), (29758, 67840), (33920, 59516)]