18855900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 216

約数和(自身を含む): 70141344

約数和(自身を除く): 51285444

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 41, 42, 45, 50, 60, 63, 70, 73, 75, 82, 84, 90, 100, 105, 123, 126, 140, 146, 150, 164, 175, 180, 205, 210, 219, 225, 246, 252, 287, 292, 300, 315, 350, 365, 369, 410, 420, 438, 450, 492, 511, 525, 574, 615, 630, 657, 700, 730, 738, 820, 861, 876, 900, 1022, 1025, 1050, 1095, 1148, 1230, 1260, 1314, 1435, 1460, 1476, 1533, 1575, 1722, 1825, 1845, 2044, 2050, 2100, 2190, 2460, 2555, 2583, 2628, 2870, 2993, 3066, 3075, 3150, 3285, 3444, 3650, 3690, 4100, 4305, 4380, 4599, 5110, 5166, 5475, 5740, 5986, 6132, 6150, 6300, 6570, 7175, 7300, 7380, 7665, 8610, 8979, 9198, 9225, 10220, 10332, 10950, 11972, 12300, 12775, 12915, 13140, 14350, 14965, 15330, 16425, 17220, 17958, 18396, 18450, 20951, 21525, 21900, 22995, 25550, 25830, 26937, 28700, 29930, 30660, 32850, 35916, 36900, 38325, 41902, 43050, 44895, 45990, 51100, 51660, 53874, 59860, 62853, 64575, 65700, 74825, 76650, 83804, 86100, 89790, 91980, 104755, 107748, 114975, 125706, 129150, 134685, 149650, 153300, 179580, 188559, 209510, 224475, 229950, 251412, 258300, 269370, 299300, 314265, 377118, 419020, 448950, 459900, 523775, 538740, 628530, 673425, 754236, 897900, 942795, 1047550, 1257060, 1346850, 1571325, 1885590, 2095100, 2693700, 3142650, 3771180, 4713975, 6285300, 9427950, 18855900]

約数ペア:

[(1, 18855900), (2, 9427950), (3, 6285300), (4, 4713975), (5, 3771180), (6, 3142650), (7, 2693700), (9, 2095100), (10, 1885590), (12, 1571325), (14, 1346850), (15, 1257060), (18, 1047550), (20, 942795), (21, 897900), (25, 754236), (28, 673425), (30, 628530), (35, 538740), (36, 523775), (41, 459900), (42, 448950), (45, 419020), (50, 377118), (60, 314265), (63, 299300), (70, 269370), (73, 258300), (75, 251412), (82, 229950), (84, 224475), (90, 209510), (100, 188559), (105, 179580), (123, 153300), (126, 149650), (140, 134685), (146, 129150), (150, 125706), (164, 114975), (175, 107748), (180, 104755), (205, 91980), (210, 89790), (219, 86100), (225, 83804), (246, 76650), (252, 74825), (287, 65700), (292, 64575), (300, 62853), (315, 59860), (350, 53874), (365, 51660), (369, 51100), (410, 45990), (420, 44895), (438, 43050), (450, 41902), (492, 38325), (511, 36900), (525, 35916), (574, 32850), (615, 30660), (630, 29930), (657, 28700), (700, 26937), (730, 25830), (738, 25550), (820, 22995), (861, 21900), (876, 21525), (900, 20951), (1022, 18450), (1025, 18396), (1050, 17958), (1095, 17220), (1148, 16425), (1230, 15330), (1260, 14965), (1314, 14350), (1435, 13140), (1460, 12915), (1476, 12775), (1533, 12300), (1575, 11972), (1722, 10950), (1825, 10332), (1845, 10220), (2044, 9225), (2050, 9198), (2100, 8979), (2190, 8610), (2460, 7665), (2555, 7380), (2583, 7300), (2628, 7175), (2870, 6570), (2993, 6300), (3066, 6150), (3075, 6132), (3150, 5986), (3285, 5740), (3444, 5475), (3650, 5166), (3690, 5110), (4100, 4599), (4305, 4380)]