28623280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:746

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 48514640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 647, 790, 1106, 1264, 1294, 1580, 2212, 2588, 2765, 3160, 3235, 4424, 4529, 5176, 5530, 6320, 6470, 8848, 9058, 10352, 11060, 12940, 18116, 22120, 22645, 25880, 36232, 44240, 45290, 51113, 51760, 72464, 90580, 102226, 181160, 204452, 255565, 357791, 362320, 408904, 511130, 715582, 817808, 1022260, 1431164, 1788955, 2044520, 2862328, 3577910, 4089040, 5724656, 7155820, 14311640, 28623280]

約数ペア:

[(1, 28623280), (2, 14311640), (4, 7155820), (5, 5724656), (7, 4089040), (8, 3577910), (10, 2862328), (14, 2044520), (16, 1788955), (20, 1431164), (28, 1022260), (35, 817808), (40, 715582), (56, 511130), (70, 408904), (79, 362320), (80, 357791), (112, 255565), (140, 204452), (158, 181160), (280, 102226), (316, 90580), (395, 72464), (553, 51760), (560, 51113), (632, 45290), (647, 44240), (790, 36232), (1106, 25880), (1264, 22645), (1294, 22120), (1580, 18116), (2212, 12940), (2588, 11060), (2765, 10352), (3160, 9058), (3235, 8848), (4424, 6470), (4529, 6320), (5176, 5530)]