388128440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{4933}}^1$

素因数の和:5232

約数の個数: 64

約数和(自身を含む): 1001799360

約数和(自身を除く): 613670920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 562, 1124, 1405, 1967, 2248, 2810, 3934, 4933, 5620, 7868, 9835, 9866, 11240, 15736, 19670, 19732, 24665, 34531, 39340, 39464, 49330, 69062, 78680, 98660, 138124, 172655, 197320, 276248, 345310, 690620, 1381240, 1386173, 2772346, 5544692, 6930865, 9703211, 11089384, 13861730, 19406422, 27723460, 38812844, 48516055, 55446920, 77625688, 97032110, 194064220, 388128440]

約数ペア:

[(1, 388128440), (2, 194064220), (4, 97032110), (5, 77625688), (7, 55446920), (8, 48516055), (10, 38812844), (14, 27723460), (20, 19406422), (28, 13861730), (35, 11089384), (40, 9703211), (56, 6930865), (70, 5544692), (140, 2772346), (280, 1386173), (281, 1381240), (562, 690620), (1124, 345310), (1405, 276248), (1967, 197320), (2248, 172655), (2810, 138124), (3934, 98660), (4933, 78680), (5620, 69062), (7868, 49330), (9835, 39464), (9866, 39340), (11240, 34531), (15736, 24665), (19670, 19732)]