102640080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{661}}^1$

素因数の和:1324

約数の個数: 80

約数和(自身を含む): 319158144

約数和(自身を除く): 216518064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 647, 661, 1294, 1322, 1941, 1983, 2588, 2644, 3235, 3305, 3882, 3966, 5176, 5288, 6470, 6610, 7764, 7932, 9705, 9915, 10352, 10576, 12940, 13220, 15528, 15864, 19410, 19830, 25880, 26440, 31056, 31728, 38820, 39660, 51760, 52880, 77640, 79320, 155280, 158640, 427667, 855334, 1283001, 1710668, 2138335, 2566002, 3421336, 4276670, 5132004, 6415005, 6842672, 8553340, 10264008, 12830010, 17106680, 20528016, 25660020, 34213360, 51320040, 102640080]

約数ペア:

[(1, 102640080), (2, 51320040), (3, 34213360), (4, 25660020), (5, 20528016), (6, 17106680), (8, 12830010), (10, 10264008), (12, 8553340), (15, 6842672), (16, 6415005), (20, 5132004), (24, 4276670), (30, 3421336), (40, 2566002), (48, 2138335), (60, 1710668), (80, 1283001), (120, 855334), (240, 427667), (647, 158640), (661, 155280), (1294, 79320), (1322, 77640), (1941, 52880), (1983, 51760), (2588, 39660), (2644, 38820), (3235, 31728), (3305, 31056), (3882, 26440), (3966, 25880), (5176, 19830), (5288, 19410), (6470, 15864), (6610, 15528), (7764, 13220), (7932, 12940), (9705, 10576), (9915, 10352)]