2781480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1783}}^1$

素因数の和:1810

約数の個数: 64

約数和(自身を含む): 8991360

約数和(自身を除く): 6209880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 1783, 3566, 5349, 7132, 8915, 10698, 14264, 17830, 21396, 23179, 26745, 35660, 42792, 46358, 53490, 69537, 71320, 92716, 106980, 115895, 139074, 185432, 213960, 231790, 278148, 347685, 463580, 556296, 695370, 927160, 1390740, 2781480]

約数ペア:

[(1, 2781480), (2, 1390740), (3, 927160), (4, 695370), (5, 556296), (6, 463580), (8, 347685), (10, 278148), (12, 231790), (13, 213960), (15, 185432), (20, 139074), (24, 115895), (26, 106980), (30, 92716), (39, 71320), (40, 69537), (52, 53490), (60, 46358), (65, 42792), (78, 35660), (104, 26745), (120, 23179), (130, 21396), (156, 17830), (195, 14264), (260, 10698), (312, 8915), (390, 7132), (520, 5349), (780, 3566), (1560, 1783)]