202020160

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:408

約数の個数: 112

約数和(自身を含む): 512064000

約数和(自身を除く): 310043840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 149, 152, 160, 190, 223, 298, 304, 320, 380, 446, 596, 608, 745, 760, 892, 1115, 1192, 1216, 1490, 1520, 1784, 2230, 2384, 2831, 2980, 3040, 3568, 4237, 4460, 4768, 5662, 5960, 6080, 7136, 8474, 8920, 9536, 11324, 11920, 14155, 14272, 16948, 17840, 21185, 22648, 23840, 28310, 33227, 33896, 35680, 42370, 45296, 47680, 56620, 66454, 67792, 71360, 84740, 90592, 113240, 132908, 135584, 166135, 169480, 181184, 226480, 265816, 271168, 332270, 338960, 452960, 531632, 631313, 664540, 677920, 905920, 1063264, 1262626, 1329080, 1355840, 2126528, 2525252, 2658160, 3156565, 5050504, 5316320, 6313130, 10101008, 10632640, 12626260, 20202016, 25252520, 40404032, 50505040, 101010080, 202020160]

約数ペア:

[(1, 202020160), (2, 101010080), (4, 50505040), (5, 40404032), (8, 25252520), (10, 20202016), (16, 12626260), (19, 10632640), (20, 10101008), (32, 6313130), (38, 5316320), (40, 5050504), (64, 3156565), (76, 2658160), (80, 2525252), (95, 2126528), (149, 1355840), (152, 1329080), (160, 1262626), (190, 1063264), (223, 905920), (298, 677920), (304, 664540), (320, 631313), (380, 531632), (446, 452960), (596, 338960), (608, 332270), (745, 271168), (760, 265816), (892, 226480), (1115, 181184), (1192, 169480), (1216, 166135), (1490, 135584), (1520, 132908), (1784, 113240), (2230, 90592), (2384, 84740), (2831, 71360), (2980, 67792), (3040, 66454), (3568, 56620), (4237, 47680), (4460, 45296), (4768, 42370), (5662, 35680), (5960, 33896), (6080, 33227), (7136, 28310), (8474, 23840), (8920, 22648), (9536, 21185), (11324, 17840), (11920, 16948), (14155, 14272)]