19914660

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:687

約数の個数: 120

約数和(自身を含む): 65862720

約数和(自身を除く): 45948060

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, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 647, 684, 810, 855, 1026, 1140, 1294, 1539, 1620, 1710, 1941, 2052, 2565, 2588, 3078, 3235, 3420, 3882, 5130, 5823, 6156, 6470, 7695, 7764, 9705, 10260, 11646, 12293, 12940, 15390, 17469, 19410, 23292, 24586, 29115, 30780, 34938, 36879, 38820, 49172, 52407, 58230, 61465, 69876, 73758, 87345, 104814, 110637, 116460, 122930, 147516, 174690, 184395, 209628, 221274, 245860, 262035, 331911, 349380, 368790, 442548, 524070, 553185, 663822, 737580, 995733, 1048140, 1106370, 1327644, 1659555, 1991466, 2212740, 3319110, 3982932, 4978665, 6638220, 9957330, 19914660]

約数ペア:

[(1, 19914660), (2, 9957330), (3, 6638220), (4, 4978665), (5, 3982932), (6, 3319110), (9, 2212740), (10, 1991466), (12, 1659555), (15, 1327644), (18, 1106370), (19, 1048140), (20, 995733), (27, 737580), (30, 663822), (36, 553185), (38, 524070), (45, 442548), (54, 368790), (57, 349380), (60, 331911), (76, 262035), (81, 245860), (90, 221274), (95, 209628), (108, 184395), (114, 174690), (135, 147516), (162, 122930), (171, 116460), (180, 110637), (190, 104814), (228, 87345), (270, 73758), (285, 69876), (324, 61465), (342, 58230), (380, 52407), (405, 49172), (513, 38820), (540, 36879), (570, 34938), (647, 30780), (684, 29115), (810, 24586), (855, 23292), (1026, 19410), (1140, 17469), (1294, 15390), (1539, 12940), (1620, 12293), (1710, 11646), (1941, 10260), (2052, 9705), (2565, 7764), (2588, 7695), (3078, 6470), (3235, 6156), (3420, 5823), (3882, 5130)]