219989690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{467}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 424131552

約数和(自身を除く): 204141862

約数列:

[1, 2, 5, 10, 17, 34, 85, 163, 170, 289, 326, 467, 578, 815, 934, 1445, 1630, 2335, 2771, 2890, 4670, 5542, 7939, 13855, 15878, 27710, 39695, 47107, 76121, 79390, 94214, 134963, 152242, 235535, 269926, 380605, 471070, 674815, 761210, 1294057, 1349630, 2588114, 6470285, 12940570, 21998969, 43997938, 109994845, 219989690]

約数ペア:

[(1, 219989690), (2, 109994845), (5, 43997938), (10, 21998969), (17, 12940570), (34, 6470285), (85, 2588114), (163, 1349630), (170, 1294057), (289, 761210), (326, 674815), (467, 471070), (578, 380605), (815, 269926), (934, 235535), (1445, 152242), (1630, 134963), (2335, 94214), (2771, 79390), (2890, 76121), (4670, 47107), (5542, 39695), (7939, 27710), (13855, 15878)]