279940640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{249947}}^1$

素因数の和:249969

約数の個数: 48

約数和(自身を含む): 755842752

約数和(自身を除く): 475902112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 249947, 499894, 999788, 1249735, 1749629, 1999576, 2499470, 3499258, 3999152, 4998940, 6998516, 7998304, 8748145, 9997880, 13997032, 17496290, 19995760, 27994064, 34992580, 39991520, 55988128, 69985160, 139970320, 279940640]

約数ペア:

[(1, 279940640), (2, 139970320), (4, 69985160), (5, 55988128), (7, 39991520), (8, 34992580), (10, 27994064), (14, 19995760), (16, 17496290), (20, 13997032), (28, 9997880), (32, 8748145), (35, 7998304), (40, 6998516), (56, 4998940), (70, 3999152), (80, 3499258), (112, 2499470), (140, 1999576), (160, 1749629), (224, 1249735), (280, 999788), (560, 499894), (1120, 249947)]