81113320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{38261}}^1$

素因数の和:38325

約数の個数: 32

約数和(自身を含む): 185953320

約数和(自身を除く): 104840000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 38261, 76522, 153044, 191305, 306088, 382610, 765220, 1530440, 2027833, 4055666, 8111332, 10139165, 16222664, 20278330, 40556660, 81113320]

約数ペア:

[(1, 81113320), (2, 40556660), (4, 20278330), (5, 16222664), (8, 10139165), (10, 8111332), (20, 4055666), (40, 2027833), (53, 1530440), (106, 765220), (212, 382610), (265, 306088), (424, 191305), (530, 153044), (1060, 76522), (2120, 38261)]