311910620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{8669}}^1$

素因数の和:8942

約数の個数: 48

約数和(自身を含む): 751584960

約数和(自身を除く): 439674340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 2570, 3598, 5140, 7196, 8669, 8995, 17338, 17990, 34676, 35980, 43345, 60683, 86690, 121366, 173380, 242732, 303415, 606830, 1213660, 2227933, 4455866, 8911732, 11139665, 15595531, 22279330, 31191062, 44558660, 62382124, 77977655, 155955310, 311910620]

約数ペア:

[(1, 311910620), (2, 155955310), (4, 77977655), (5, 62382124), (7, 44558660), (10, 31191062), (14, 22279330), (20, 15595531), (28, 11139665), (35, 8911732), (70, 4455866), (140, 2227933), (257, 1213660), (514, 606830), (1028, 303415), (1285, 242732), (1799, 173380), (2570, 121366), (3598, 86690), (5140, 60683), (7196, 43345), (8669, 35980), (8995, 34676), (17338, 17990)]