201894890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:527

約数の個数: 64

約数和(自身を含む): 400308480

約数和(自身を除く): 198413590

約数列:

[1, 2, 5, 10, 17, 34, 43, 71, 85, 86, 142, 170, 215, 355, 389, 430, 710, 731, 778, 1207, 1462, 1945, 2414, 3053, 3655, 3890, 6035, 6106, 6613, 7310, 12070, 13226, 15265, 16727, 27619, 30530, 33065, 33454, 51901, 55238, 66130, 83635, 103802, 138095, 167270, 259505, 276190, 284359, 469523, 519010, 568718, 939046, 1187617, 1421795, 2347615, 2375234, 2843590, 4695230, 5938085, 11876170, 20189489, 40378978, 100947445, 201894890]

約数ペア:

[(1, 201894890), (2, 100947445), (5, 40378978), (10, 20189489), (17, 11876170), (34, 5938085), (43, 4695230), (71, 2843590), (85, 2375234), (86, 2347615), (142, 1421795), (170, 1187617), (215, 939046), (355, 568718), (389, 519010), (430, 469523), (710, 284359), (731, 276190), (778, 259505), (1207, 167270), (1462, 138095), (1945, 103802), (2414, 83635), (3053, 66130), (3655, 55238), (3890, 51901), (6035, 33454), (6106, 33065), (6613, 30530), (7310, 27619), (12070, 16727), (13226, 15265)]