18640860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44383}}^1$

素因数の和:44402

約数の個数: 48

約数和(自身を含む): 59652096

約数和(自身を除く): 41011236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 44383, 88766, 133149, 177532, 221915, 266298, 310681, 443830, 532596, 621362, 665745, 887660, 932043, 1242724, 1331490, 1553405, 1864086, 2662980, 3106810, 3728172, 4660215, 6213620, 9320430, 18640860]

約数ペア:

[(1, 18640860), (2, 9320430), (3, 6213620), (4, 4660215), (5, 3728172), (6, 3106810), (7, 2662980), (10, 1864086), (12, 1553405), (14, 1331490), (15, 1242724), (20, 932043), (21, 887660), (28, 665745), (30, 621362), (35, 532596), (42, 443830), (60, 310681), (70, 266298), (84, 221915), (105, 177532), (140, 133149), (210, 88766), (420, 44383)]