18981581640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{610733}}^1$

素因数の和:610791

約数の個数: 128

約数和(自身を含む): 66838728960

約数和(自身を除く): 47857147320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 740, 777, 840, 888, 1036, 1110, 1295, 1480, 1554, 2072, 2220, 2590, 3108, 3885, 4440, 5180, 6216, 7770, 10360, 15540, 31080, 610733, 1221466, 1832199, 2442932, 3053665, 3664398, 4275131, 4885864, 6107330, 7328796, 8550262, 9160995, 12214660, 12825393, 14657592, 17100524, 18321990, 21375655, 22597121, 24429320, 25650786, 34201048, 36643980, 42751310, 45194242, 51301572, 64126965, 67791363, 73287960, 85502620, 90388484, 102603144, 112985605, 128253930, 135582726, 158179847, 171005240, 180776968, 225971210, 256507860, 271165452, 316359694, 338956815, 451942420, 474539541, 513015720, 542330904, 632719388, 677913630, 790899235, 903884840, 949079082, 1265438776, 1355827260, 1581798470, 1898158164, 2372697705, 2711654520, 3163596940, 3796316328, 4745395410, 6327193880, 9490790820, 18981581640]

約数ペア:

[(1, 18981581640), (2, 9490790820), (3, 6327193880), (4, 4745395410), (5, 3796316328), (6, 3163596940), (7, 2711654520), (8, 2372697705), (10, 1898158164), (12, 1581798470), (14, 1355827260), (15, 1265438776), (20, 949079082), (21, 903884840), (24, 790899235), (28, 677913630), (30, 632719388), (35, 542330904), (37, 513015720), (40, 474539541), (42, 451942420), (56, 338956815), (60, 316359694), (70, 271165452), (74, 256507860), (84, 225971210), (105, 180776968), (111, 171005240), (120, 158179847), (140, 135582726), (148, 128253930), (168, 112985605), (185, 102603144), (210, 90388484), (222, 85502620), (259, 73287960), (280, 67791363), (296, 64126965), (370, 51301572), (420, 45194242), (444, 42751310), (518, 36643980), (555, 34201048), (740, 25650786), (777, 24429320), (840, 22597121), (888, 21375655), (1036, 18321990), (1110, 17100524), (1295, 14657592), (1480, 12825393), (1554, 12214660), (2072, 9160995), (2220, 8550262), (2590, 7328796), (3108, 6107330), (3885, 4885864), (4440, 4275131), (5180, 3664398), (6216, 3053665), (7770, 2442932), (10360, 1832199), (15540, 1221466), (31080, 610733)]