20065406

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 34020000

約数和(自身を除く): 13954594

約数列:

[1, 2, 17, 19, 34, 38, 89, 178, 323, 349, 646, 698, 1513, 1691, 3026, 3382, 5933, 6631, 11866, 13262, 28747, 31061, 57494, 62122, 112727, 225454, 528037, 590159, 1056074, 1180318, 10032703, 20065406]

約数ペア:

[(1, 20065406), (2, 10032703), (17, 1180318), (19, 1056074), (34, 590159), (38, 528037), (89, 225454), (178, 112727), (323, 62122), (349, 57494), (646, 31061), (698, 28747), (1513, 13262), (1691, 11866), (3026, 6631), (3382, 5933)]