81475100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:747

約数の個数: 72

約数和(自身を含む): 203320320

約数和(自身を除く): 121845220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 239, 350, 478, 487, 700, 956, 974, 1195, 1673, 1948, 2390, 2435, 3346, 3409, 4780, 4870, 5975, 6692, 6818, 8365, 9740, 11950, 12175, 13636, 16730, 17045, 23900, 24350, 33460, 34090, 41825, 48700, 68180, 83650, 85225, 116393, 167300, 170450, 232786, 340900, 465572, 581965, 814751, 1163930, 1629502, 2327860, 2909825, 3259004, 4073755, 5819650, 8147510, 11639300, 16295020, 20368775, 40737550, 81475100]

約数ペア:

[(1, 81475100), (2, 40737550), (4, 20368775), (5, 16295020), (7, 11639300), (10, 8147510), (14, 5819650), (20, 4073755), (25, 3259004), (28, 2909825), (35, 2327860), (50, 1629502), (70, 1163930), (100, 814751), (140, 581965), (175, 465572), (239, 340900), (350, 232786), (478, 170450), (487, 167300), (700, 116393), (956, 85225), (974, 83650), (1195, 68180), (1673, 48700), (1948, 41825), (2390, 34090), (2435, 33460), (3346, 24350), (3409, 23900), (4780, 17045), (4870, 16730), (5975, 13636), (6692, 12175), (6818, 11950), (8365, 9740)]