28035890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 54707400

約数和(自身を除く): 26671510

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 109, 170, 178, 218, 289, 445, 545, 578, 890, 1090, 1445, 1513, 1853, 2890, 3026, 3706, 7565, 9265, 9701, 15130, 18530, 19402, 25721, 31501, 48505, 51442, 63002, 97010, 128605, 157505, 164917, 257210, 315010, 329834, 824585, 1649170, 2803589, 5607178, 14017945, 28035890]

約数ペア:

[(1, 28035890), (2, 14017945), (5, 5607178), (10, 2803589), (17, 1649170), (34, 824585), (85, 329834), (89, 315010), (109, 257210), (170, 164917), (178, 157505), (218, 128605), (289, 97010), (445, 63002), (545, 51442), (578, 48505), (890, 31501), (1090, 25721), (1445, 19402), (1513, 18530), (1853, 15130), (2890, 9701), (3026, 9265), (3706, 7565)]