31450240

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 75906360

約数和(自身を除く): 44456120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 313, 314, 320, 626, 628, 640, 785, 1252, 1256, 1565, 1570, 2504, 2512, 3130, 3140, 5008, 5024, 6260, 6280, 10016, 10048, 12520, 12560, 20032, 20096, 25040, 25120, 40064, 49141, 50080, 50240, 98282, 100160, 100480, 196564, 200320, 245705, 393128, 491410, 786256, 982820, 1572512, 1965640, 3145024, 3931280, 6290048, 7862560, 15725120, 31450240]

約数ペア:

[(1, 31450240), (2, 15725120), (4, 7862560), (5, 6290048), (8, 3931280), (10, 3145024), (16, 1965640), (20, 1572512), (32, 982820), (40, 786256), (64, 491410), (80, 393128), (128, 245705), (157, 200320), (160, 196564), (313, 100480), (314, 100160), (320, 98282), (626, 50240), (628, 50080), (640, 49141), (785, 40064), (1252, 25120), (1256, 25040), (1565, 20096), (1570, 20032), (2504, 12560), (2512, 12520), (3130, 10048), (3140, 10016), (5008, 6280), (5024, 6260)]