31497990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 78382080

約数和(自身を除く): 46884090

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 89, 94, 141, 178, 235, 251, 267, 282, 445, 470, 502, 534, 705, 753, 890, 1255, 1335, 1410, 1506, 2510, 2670, 3765, 4183, 7530, 8366, 11797, 12549, 20915, 22339, 23594, 25098, 35391, 41830, 44678, 58985, 62745, 67017, 70782, 111695, 117970, 125490, 134034, 176955, 223390, 335085, 353910, 670170, 1049933, 2099866, 3149799, 5249665, 6299598, 10499330, 15748995, 31497990]

約数ペア:

[(1, 31497990), (2, 15748995), (3, 10499330), (5, 6299598), (6, 5249665), (10, 3149799), (15, 2099866), (30, 1049933), (47, 670170), (89, 353910), (94, 335085), (141, 223390), (178, 176955), (235, 134034), (251, 125490), (267, 117970), (282, 111695), (445, 70782), (470, 67017), (502, 62745), (534, 58985), (705, 44678), (753, 41830), (890, 35391), (1255, 25098), (1335, 23594), (1410, 22339), (1506, 20915), (2510, 12549), (2670, 11797), (3765, 8366), (4183, 7530)]