788802640

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 1860255936

約数和(自身を除く): 1071453296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 241, 251, 326, 482, 502, 652, 815, 964, 1004, 1205, 1255, 1304, 1630, 1928, 2008, 2410, 2510, 2608, 3260, 3856, 4016, 4820, 5020, 6520, 9640, 10040, 13040, 19280, 20080, 39283, 40913, 60491, 78566, 81826, 120982, 157132, 163652, 196415, 204565, 241964, 302455, 314264, 327304, 392830, 409130, 483928, 604910, 628528, 654608, 785660, 818260, 967856, 1209820, 1571320, 1636520, 2419640, 3142640, 3273040, 4839280, 9860033, 19720066, 39440132, 49300165, 78880264, 98600330, 157760528, 197200660, 394401320, 788802640]

約数ペア:

[(1, 788802640), (2, 394401320), (4, 197200660), (5, 157760528), (8, 98600330), (10, 78880264), (16, 49300165), (20, 39440132), (40, 19720066), (80, 9860033), (163, 4839280), (241, 3273040), (251, 3142640), (326, 2419640), (482, 1636520), (502, 1571320), (652, 1209820), (815, 967856), (964, 818260), (1004, 785660), (1205, 654608), (1255, 628528), (1304, 604910), (1630, 483928), (1928, 409130), (2008, 392830), (2410, 327304), (2510, 314264), (2608, 302455), (3260, 241964), (3856, 204565), (4016, 196415), (4820, 163652), (5020, 157132), (6520, 120982), (9640, 81826), (10040, 78566), (13040, 60491), (19280, 40913), (20080, 39283)]