205721040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{122453}}^1$

素因数の和:122476

約数の個数: 80

約数和(自身を含む): 728846208

約数和(自身を除く): 523125168

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 122453, 244906, 367359, 489812, 612265, 734718, 857171, 979624, 1224530, 1469436, 1714342, 1836795, 1959248, 2449060, 2571513, 2938872, 3428684, 3673590, 4285855, 4898120, 5143026, 5877744, 6857368, 7347180, 8571710, 9796240, 10286052, 12857565, 13714736, 14694360, 17143420, 20572104, 25715130, 29388720, 34286840, 41144208, 51430260, 68573680, 102860520, 205721040]

約数ペア:

[(1, 205721040), (2, 102860520), (3, 68573680), (4, 51430260), (5, 41144208), (6, 34286840), (7, 29388720), (8, 25715130), (10, 20572104), (12, 17143420), (14, 14694360), (15, 13714736), (16, 12857565), (20, 10286052), (21, 9796240), (24, 8571710), (28, 7347180), (30, 6857368), (35, 5877744), (40, 5143026), (42, 4898120), (48, 4285855), (56, 3673590), (60, 3428684), (70, 2938872), (80, 2571513), (84, 2449060), (105, 1959248), (112, 1836795), (120, 1714342), (140, 1469436), (168, 1224530), (210, 979624), (240, 857171), (280, 734718), (336, 612265), (420, 489812), (560, 367359), (840, 244906), (1680, 122453)]