25441000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 68140800

約数和(自身を除く): 42699800

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 95, 100, 103, 104, 125, 130, 152, 190, 200, 206, 247, 250, 260, 325, 380, 412, 475, 494, 500, 515, 520, 650, 760, 824, 950, 988, 1000, 1030, 1235, 1300, 1339, 1625, 1900, 1957, 1976, 2060, 2375, 2470, 2575, 2600, 2678, 3250, 3800, 3914, 4120, 4750, 4940, 5150, 5356, 6175, 6500, 6695, 7828, 9500, 9785, 9880, 10300, 10712, 12350, 12875, 13000, 13390, 15656, 19000, 19570, 20600, 24700, 25441, 25750, 26780, 30875, 33475, 39140, 48925, 49400, 50882, 51500, 53560, 61750, 66950, 78280, 97850, 101764, 103000, 123500, 127205, 133900, 167375, 195700, 203528, 244625, 247000, 254410, 267800, 334750, 391400, 489250, 508820, 636025, 669500, 978500, 1017640, 1272050, 1339000, 1957000, 2544100, 3180125, 5088200, 6360250, 12720500, 25441000]

約数ペア:

[(1, 25441000), (2, 12720500), (4, 6360250), (5, 5088200), (8, 3180125), (10, 2544100), (13, 1957000), (19, 1339000), (20, 1272050), (25, 1017640), (26, 978500), (38, 669500), (40, 636025), (50, 508820), (52, 489250), (65, 391400), (76, 334750), (95, 267800), (100, 254410), (103, 247000), (104, 244625), (125, 203528), (130, 195700), (152, 167375), (190, 133900), (200, 127205), (206, 123500), (247, 103000), (250, 101764), (260, 97850), (325, 78280), (380, 66950), (412, 61750), (475, 53560), (494, 51500), (500, 50882), (515, 49400), (520, 48925), (650, 39140), (760, 33475), (824, 30875), (950, 26780), (988, 25750), (1000, 25441), (1030, 24700), (1235, 20600), (1300, 19570), (1339, 19000), (1625, 15656), (1900, 13390), (1957, 13000), (1976, 12875), (2060, 12350), (2375, 10712), (2470, 10300), (2575, 9880), (2600, 9785), (2678, 9500), (3250, 7828), (3800, 6695), (3914, 6500), (4120, 6175), (4750, 5356), (4940, 5150)]