51456420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{587}}^1$

素因数の和:1089

約数の個数: 72

約数和(自身を含む): 156671424

約数和(自身を除く): 105215004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 487, 587, 974, 1174, 1461, 1761, 1948, 2348, 2435, 2922, 2935, 3522, 4383, 4870, 5283, 5844, 5870, 7044, 7305, 8766, 8805, 9740, 10566, 11740, 14610, 17532, 17610, 21132, 21915, 26415, 29220, 35220, 43830, 52830, 87660, 105660, 285869, 571738, 857607, 1143476, 1429345, 1715214, 2572821, 2858690, 3430428, 4288035, 5145642, 5717380, 8576070, 10291284, 12864105, 17152140, 25728210, 51456420]

約数ペア:

[(1, 51456420), (2, 25728210), (3, 17152140), (4, 12864105), (5, 10291284), (6, 8576070), (9, 5717380), (10, 5145642), (12, 4288035), (15, 3430428), (18, 2858690), (20, 2572821), (30, 1715214), (36, 1429345), (45, 1143476), (60, 857607), (90, 571738), (180, 285869), (487, 105660), (587, 87660), (974, 52830), (1174, 43830), (1461, 35220), (1761, 29220), (1948, 26415), (2348, 21915), (2435, 21132), (2922, 17610), (2935, 17532), (3522, 14610), (4383, 11740), (4870, 10566), (5283, 9740), (5844, 8805), (5870, 8766), (7044, 7305)]