20477700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{373}}^1$

素因数の和:454

約数の個数: 108

約数和(自身を含む): 65413348

約数和(自身を除く): 44935648

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 61, 75, 90, 100, 122, 150, 180, 183, 225, 244, 300, 305, 366, 373, 450, 549, 610, 732, 746, 900, 915, 1098, 1119, 1220, 1492, 1525, 1830, 1865, 2196, 2238, 2745, 3050, 3357, 3660, 3730, 4476, 4575, 5490, 5595, 6100, 6714, 7460, 9150, 9325, 10980, 11190, 13428, 13725, 16785, 18300, 18650, 22380, 22753, 27450, 27975, 33570, 37300, 45506, 54900, 55950, 67140, 68259, 83925, 91012, 111900, 113765, 136518, 167850, 204777, 227530, 273036, 335700, 341295, 409554, 455060, 568825, 682590, 819108, 1023885, 1137650, 1365180, 1706475, 2047770, 2275300, 3412950, 4095540, 5119425, 6825900, 10238850, 20477700]

約数ペア:

[(1, 20477700), (2, 10238850), (3, 6825900), (4, 5119425), (5, 4095540), (6, 3412950), (9, 2275300), (10, 2047770), (12, 1706475), (15, 1365180), (18, 1137650), (20, 1023885), (25, 819108), (30, 682590), (36, 568825), (45, 455060), (50, 409554), (60, 341295), (61, 335700), (75, 273036), (90, 227530), (100, 204777), (122, 167850), (150, 136518), (180, 113765), (183, 111900), (225, 91012), (244, 83925), (300, 68259), (305, 67140), (366, 55950), (373, 54900), (450, 45506), (549, 37300), (610, 33570), (732, 27975), (746, 27450), (900, 22753), (915, 22380), (1098, 18650), (1119, 18300), (1220, 16785), (1492, 13725), (1525, 13428), (1830, 11190), (1865, 10980), (2196, 9325), (2238, 9150), (2745, 7460), (3050, 6714), (3357, 6100), (3660, 5595), (3730, 5490), (4476, 4575)]