81027800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1867}}^1$

素因数の和:1921

約数の個数: 96

約数和(自身を含む): 222366720

約数和(自身を除く): 141338920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 124, 140, 155, 175, 200, 217, 248, 280, 310, 350, 434, 620, 700, 775, 868, 1085, 1240, 1400, 1550, 1736, 1867, 2170, 3100, 3734, 4340, 5425, 6200, 7468, 8680, 9335, 10850, 13069, 14936, 18670, 21700, 26138, 37340, 43400, 46675, 52276, 57877, 65345, 74680, 93350, 104552, 115754, 130690, 186700, 231508, 261380, 289385, 326725, 373400, 405139, 463016, 522760, 578770, 653450, 810278, 1157540, 1306900, 1446925, 1620556, 2025695, 2315080, 2613800, 2893850, 3241112, 4051390, 5787700, 8102780, 10128475, 11575400, 16205560, 20256950, 40513900, 81027800]

約数ペア:

[(1, 81027800), (2, 40513900), (4, 20256950), (5, 16205560), (7, 11575400), (8, 10128475), (10, 8102780), (14, 5787700), (20, 4051390), (25, 3241112), (28, 2893850), (31, 2613800), (35, 2315080), (40, 2025695), (50, 1620556), (56, 1446925), (62, 1306900), (70, 1157540), (100, 810278), (124, 653450), (140, 578770), (155, 522760), (175, 463016), (200, 405139), (217, 373400), (248, 326725), (280, 289385), (310, 261380), (350, 231508), (434, 186700), (620, 130690), (700, 115754), (775, 104552), (868, 93350), (1085, 74680), (1240, 65345), (1400, 57877), (1550, 52276), (1736, 46675), (1867, 43400), (2170, 37340), (3100, 26138), (3734, 21700), (4340, 18670), (5425, 14936), (6200, 13069), (7468, 10850), (8680, 9335)]