68813820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{353}}^1$

素因数の和:409

約数の個数: 144

約数和(自身を含む): 226588320

約数和(自身を除く): 157774500

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, 353, 361, 380, 513, 540, 570, 684, 706, 722, 855, 1026, 1059, 1083, 1140, 1412, 1444, 1710, 1765, 1805, 2052, 2118, 2166, 2565, 3177, 3249, 3420, 3530, 3610, 4236, 4332, 5130, 5295, 5415, 6354, 6498, 6707, 7060, 7220, 9531, 9747, 10260, 10590, 10830, 12708, 12996, 13414, 15885, 16245, 19062, 19494, 20121, 21180, 21660, 26828, 31770, 32490, 33535, 38124, 38988, 40242, 47655, 48735, 60363, 63540, 64980, 67070, 80484, 95310, 97470, 100605, 120726, 127433, 134140, 181089, 190620, 194940, 201210, 241452, 254866, 301815, 362178, 382299, 402420, 509732, 603630, 637165, 724356, 764598, 905445, 1146897, 1207260, 1274330, 1529196, 1810890, 1911495, 2293794, 2548660, 3440691, 3621780, 3822990, 4587588, 5734485, 6881382, 7645980, 11468970, 13762764, 17203455, 22937940, 34406910, 68813820]

約数ペア:

[(1, 68813820), (2, 34406910), (3, 22937940), (4, 17203455), (5, 13762764), (6, 11468970), (9, 7645980), (10, 6881382), (12, 5734485), (15, 4587588), (18, 3822990), (19, 3621780), (20, 3440691), (27, 2548660), (30, 2293794), (36, 1911495), (38, 1810890), (45, 1529196), (54, 1274330), (57, 1207260), (60, 1146897), (76, 905445), (90, 764598), (95, 724356), (108, 637165), (114, 603630), (135, 509732), (171, 402420), (180, 382299), (190, 362178), (228, 301815), (270, 254866), (285, 241452), (342, 201210), (353, 194940), (361, 190620), (380, 181089), (513, 134140), (540, 127433), (570, 120726), (684, 100605), (706, 97470), (722, 95310), (855, 80484), (1026, 67070), (1059, 64980), (1083, 63540), (1140, 60363), (1412, 48735), (1444, 47655), (1710, 40242), (1765, 38988), (1805, 38124), (2052, 33535), (2118, 32490), (2166, 31770), (2565, 26828), (3177, 21660), (3249, 21180), (3420, 20121), (3530, 19494), (3610, 19062), (4236, 16245), (4332, 15885), (5130, 13414), (5295, 12996), (5415, 12708), (6354, 10830), (6498, 10590), (6707, 10260), (7060, 9747), (7220, 9531)]