18478260

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1801}}^1$

素因数の和:1838

約数の個数: 96

約数和(自身を含む): 60547200

約数和(自身を除く): 42068940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 380, 513, 540, 570, 684, 855, 1026, 1140, 1710, 1801, 2052, 2565, 3420, 3602, 5130, 5403, 7204, 9005, 10260, 10806, 16209, 18010, 21612, 27015, 32418, 34219, 36020, 48627, 54030, 64836, 68438, 81045, 97254, 102657, 108060, 136876, 162090, 171095, 194508, 205314, 243135, 307971, 324180, 342190, 410628, 486270, 513285, 615942, 684380, 923913, 972540, 1026570, 1231884, 1539855, 1847826, 2053140, 3079710, 3695652, 4619565, 6159420, 9239130, 18478260]

約数ペア:

[(1, 18478260), (2, 9239130), (3, 6159420), (4, 4619565), (5, 3695652), (6, 3079710), (9, 2053140), (10, 1847826), (12, 1539855), (15, 1231884), (18, 1026570), (19, 972540), (20, 923913), (27, 684380), (30, 615942), (36, 513285), (38, 486270), (45, 410628), (54, 342190), (57, 324180), (60, 307971), (76, 243135), (90, 205314), (95, 194508), (108, 171095), (114, 162090), (135, 136876), (171, 108060), (180, 102657), (190, 97254), (228, 81045), (270, 68438), (285, 64836), (342, 54030), (380, 48627), (513, 36020), (540, 34219), (570, 32418), (684, 27015), (855, 21612), (1026, 18010), (1140, 16209), (1710, 10806), (1801, 10260), (2052, 9005), (2565, 7204), (3420, 5403), (3602, 5130)]