19754700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:456

約数の個数: 144

約数和(自身を含む): 68328960

約数和(自身を除く): 48574260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 25, 28, 30, 35, 42, 46, 50, 60, 69, 70, 75, 84, 92, 100, 105, 115, 138, 140, 150, 161, 175, 210, 230, 276, 300, 322, 345, 350, 409, 420, 460, 483, 525, 575, 644, 690, 700, 805, 818, 966, 1050, 1150, 1227, 1380, 1610, 1636, 1725, 1932, 2045, 2100, 2300, 2415, 2454, 2863, 3220, 3450, 4025, 4090, 4830, 4908, 5726, 6135, 6900, 8050, 8180, 8589, 9407, 9660, 10225, 11452, 12075, 12270, 14315, 16100, 17178, 18814, 20450, 24150, 24540, 28221, 28630, 30675, 34356, 37628, 40900, 42945, 47035, 48300, 56442, 57260, 61350, 65849, 71575, 85890, 94070, 112884, 122700, 131698, 141105, 143150, 171780, 188140, 197547, 214725, 235175, 263396, 282210, 286300, 329245, 395094, 429450, 470350, 564420, 658490, 705525, 790188, 858900, 940700, 987735, 1316980, 1411050, 1646225, 1975470, 2822100, 3292450, 3950940, 4938675, 6584900, 9877350, 19754700]

約数ペア:

[(1, 19754700), (2, 9877350), (3, 6584900), (4, 4938675), (5, 3950940), (6, 3292450), (7, 2822100), (10, 1975470), (12, 1646225), (14, 1411050), (15, 1316980), (20, 987735), (21, 940700), (23, 858900), (25, 790188), (28, 705525), (30, 658490), (35, 564420), (42, 470350), (46, 429450), (50, 395094), (60, 329245), (69, 286300), (70, 282210), (75, 263396), (84, 235175), (92, 214725), (100, 197547), (105, 188140), (115, 171780), (138, 143150), (140, 141105), (150, 131698), (161, 122700), (175, 112884), (210, 94070), (230, 85890), (276, 71575), (300, 65849), (322, 61350), (345, 57260), (350, 56442), (409, 48300), (420, 47035), (460, 42945), (483, 40900), (525, 37628), (575, 34356), (644, 30675), (690, 28630), (700, 28221), (805, 24540), (818, 24150), (966, 20450), (1050, 18814), (1150, 17178), (1227, 16100), (1380, 14315), (1610, 12270), (1636, 12075), (1725, 11452), (1932, 10225), (2045, 9660), (2100, 9407), (2300, 8589), (2415, 8180), (2454, 8050), (2863, 6900), (3220, 6135), (3450, 5726), (4025, 4908), (4090, 4830)]