890127740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1097}}^1\times {\mathrm{1399}}^1$

素因数の和:2534

約数の個数: 48

約数和(自身を含む): 1936872000

約数和(自身を除く): 1046744260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1097, 1399, 2194, 2798, 4388, 5485, 5596, 6995, 10970, 13990, 21940, 27980, 31813, 40571, 63626, 81142, 127252, 159065, 162284, 202855, 318130, 405710, 636260, 811420, 1534703, 3069406, 6138812, 7673515, 15347030, 30694060, 44506387, 89012774, 178025548, 222531935, 445063870, 890127740]

約数ペア:

[(1, 890127740), (2, 445063870), (4, 222531935), (5, 178025548), (10, 89012774), (20, 44506387), (29, 30694060), (58, 15347030), (116, 7673515), (145, 6138812), (290, 3069406), (580, 1534703), (1097, 811420), (1399, 636260), (2194, 405710), (2798, 318130), (4388, 202855), (5485, 162284), (5596, 159065), (6995, 127252), (10970, 81142), (13990, 63626), (21940, 40571), (27980, 31813)]