2178338980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{4133}}^1$

素因数の和:4253

約数の個数: 72

約数和(自身を含む): 4895267832

約数和(自身を除く): 2716928852

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 361, 365, 380, 722, 730, 1387, 1444, 1460, 1805, 2774, 3610, 4133, 5548, 6935, 7220, 8266, 13870, 16532, 20665, 26353, 27740, 41330, 52706, 78527, 82660, 105412, 131765, 157054, 263530, 301709, 314108, 392635, 527060, 603418, 785270, 1206836, 1492013, 1508545, 1570540, 2984026, 3017090, 5732471, 5968052, 6034180, 7460065, 11464942, 14920130, 22929884, 28662355, 29840260, 57324710, 108916949, 114649420, 217833898, 435667796, 544584745, 1089169490, 2178338980]

約数ペア:

[(1, 2178338980), (2, 1089169490), (4, 544584745), (5, 435667796), (10, 217833898), (19, 114649420), (20, 108916949), (38, 57324710), (73, 29840260), (76, 28662355), (95, 22929884), (146, 14920130), (190, 11464942), (292, 7460065), (361, 6034180), (365, 5968052), (380, 5732471), (722, 3017090), (730, 2984026), (1387, 1570540), (1444, 1508545), (1460, 1492013), (1805, 1206836), (2774, 785270), (3610, 603418), (4133, 527060), (5548, 392635), (6935, 314108), (7220, 301709), (8266, 263530), (13870, 157054), (16532, 131765), (20665, 105412), (26353, 82660), (27740, 78527), (41330, 52706)]