201257890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{1619}}^1$

素因数の和:2058

約数の個数: 32

約数和(自身を含む): 375114240

約数和(自身を除く): 173856350

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 401, 802, 1619, 2005, 3238, 4010, 8095, 12431, 16190, 24862, 50189, 62155, 100378, 124310, 250945, 501890, 649219, 1298438, 3246095, 6492190, 20125789, 40251578, 100628945, 201257890]

約数ペア:

[(1, 201257890), (2, 100628945), (5, 40251578), (10, 20125789), (31, 6492190), (62, 3246095), (155, 1298438), (310, 649219), (401, 501890), (802, 250945), (1619, 124310), (2005, 100378), (3238, 62155), (4010, 50189), (8095, 24862), (12431, 16190)]