155555900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1439}}^1$

素因数の和:1523

約数の個数: 72

約数和(自身を含む): 359976960

約数和(自身を除く): 204421060

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 47, 50, 92, 94, 100, 115, 188, 230, 235, 460, 470, 575, 940, 1081, 1150, 1175, 1439, 2162, 2300, 2350, 2878, 4324, 4700, 5405, 5756, 7195, 10810, 14390, 21620, 27025, 28780, 33097, 35975, 54050, 66194, 67633, 71950, 108100, 132388, 135266, 143900, 165485, 270532, 330970, 338165, 661940, 676330, 827425, 1352660, 1555559, 1654850, 1690825, 3111118, 3309700, 3381650, 6222236, 6763300, 7777795, 15555590, 31111180, 38888975, 77777950, 155555900]

約数ペア:

[(1, 155555900), (2, 77777950), (4, 38888975), (5, 31111180), (10, 15555590), (20, 7777795), (23, 6763300), (25, 6222236), (46, 3381650), (47, 3309700), (50, 3111118), (92, 1690825), (94, 1654850), (100, 1555559), (115, 1352660), (188, 827425), (230, 676330), (235, 661940), (460, 338165), (470, 330970), (575, 270532), (940, 165485), (1081, 143900), (1150, 135266), (1175, 132388), (1439, 108100), (2162, 71950), (2300, 67633), (2350, 66194), (2878, 54050), (4324, 35975), (4700, 33097), (5405, 28780), (5756, 27025), (7195, 21620), (10810, 14390)]