1808304875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{977}}^1$

素因数の和:1089

約数の個数: 64

約数和(自身を含む): 2614405248

約数和(自身を除く): 806100373

約数列:

[1, 5, 13, 17, 25, 65, 67, 85, 125, 221, 325, 335, 425, 871, 977, 1105, 1139, 1625, 1675, 2125, 4355, 4885, 5525, 5695, 8375, 12701, 14807, 16609, 21775, 24425, 27625, 28475, 63505, 65459, 74035, 83045, 108875, 122125, 142375, 215917, 317525, 327295, 370175, 415225, 850967, 1079585, 1112803, 1587625, 1636475, 1850875, 2076125, 4254835, 5397925, 5564015, 8182375, 14466439, 21274175, 26989625, 27820075, 72332195, 106370875, 139100375, 361660975, 1808304875]

約数ペア:

[(1, 1808304875), (5, 361660975), (13, 139100375), (17, 106370875), (25, 72332195), (65, 27820075), (67, 26989625), (85, 21274175), (125, 14466439), (221, 8182375), (325, 5564015), (335, 5397925), (425, 4254835), (871, 2076125), (977, 1850875), (1105, 1636475), (1139, 1587625), (1625, 1112803), (1675, 1079585), (2125, 850967), (4355, 415225), (4885, 370175), (5525, 327295), (5695, 317525), (8375, 215917), (12701, 142375), (14807, 122125), (16609, 108875), (21775, 83045), (24425, 74035), (27625, 65459), (28475, 63505)]