128520233680

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1831}}^1\times {\mathrm{4409}}^1$

素因数の和:6452

約数の個数: 80

約数和(自身を含む): 300543264000

約数和(自身を除く): 172023030320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1831, 1990, 3184, 3662, 3980, 4409, 7324, 7960, 8818, 9155, 14648, 15920, 17636, 18310, 22045, 29296, 35272, 36620, 44090, 70544, 73240, 88180, 146480, 176360, 352720, 364369, 728738, 877391, 1457476, 1754782, 1821845, 2914952, 3509564, 3643690, 4386955, 5829904, 7019128, 7287380, 8072879, 8773910, 14038256, 14574760, 16145758, 17547820, 29149520, 32291516, 35095640, 40364395, 64583032, 70191280, 80728790, 129166064, 161457580, 322915160, 645830320, 1606502921, 3213005842, 6426011684, 8032514605, 12852023368, 16065029210, 25704046736, 32130058420, 64260116840, 128520233680]

約数ペア:

[(1, 128520233680), (2, 64260116840), (4, 32130058420), (5, 25704046736), (8, 16065029210), (10, 12852023368), (16, 8032514605), (20, 6426011684), (40, 3213005842), (80, 1606502921), (199, 645830320), (398, 322915160), (796, 161457580), (995, 129166064), (1592, 80728790), (1831, 70191280), (1990, 64583032), (3184, 40364395), (3662, 35095640), (3980, 32291516), (4409, 29149520), (7324, 17547820), (7960, 16145758), (8818, 14574760), (9155, 14038256), (14648, 8773910), (15920, 8072879), (17636, 7287380), (18310, 7019128), (22045, 5829904), (29296, 4386955), (35272, 3643690), (36620, 3509564), (44090, 2914952), (70544, 1821845), (73240, 1754782), (88180, 1457476), (146480, 877391), (176360, 728738), (352720, 364369)]