311440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:259

約数の個数: 40

約数和(自身を含む): 770040

約数和(自身を除く): 458600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 229, 272, 340, 458, 680, 916, 1145, 1360, 1832, 2290, 3664, 3893, 4580, 7786, 9160, 15572, 18320, 19465, 31144, 38930, 62288, 77860, 155720, 311440]

約数ペア:

[(1, 311440), (2, 155720), (4, 77860), (5, 62288), (8, 38930), (10, 31144), (16, 19465), (17, 18320), (20, 15572), (34, 9160), (40, 7786), (68, 4580), (80, 3893), (85, 3664), (136, 2290), (170, 1832), (229, 1360), (272, 1145), (340, 916), (458, 680)]