28005880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3449}}^1$

素因数の和:3496

約数の個数: 64

約数和(自身を含む): 74520000

約数和(自身を除く): 46514120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 3449, 4060, 6898, 8120, 13796, 17245, 24143, 27592, 34490, 48286, 68980, 96572, 100021, 120715, 137960, 193144, 200042, 241430, 400084, 482860, 500105, 700147, 800168, 965720, 1000210, 1400294, 2000420, 2800588, 3500735, 4000840, 5601176, 7001470, 14002940, 28005880]

約数ペア:

[(1, 28005880), (2, 14002940), (4, 7001470), (5, 5601176), (7, 4000840), (8, 3500735), (10, 2800588), (14, 2000420), (20, 1400294), (28, 1000210), (29, 965720), (35, 800168), (40, 700147), (56, 500105), (58, 482860), (70, 400084), (116, 241430), (140, 200042), (145, 193144), (203, 137960), (232, 120715), (280, 100021), (290, 96572), (406, 68980), (580, 48286), (812, 34490), (1015, 27592), (1160, 24143), (1624, 17245), (2030, 13796), (3449, 8120), (4060, 6898)]