80015940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:442

約数の個数: 144

約数和(自身を含む): 261031680

約数和(自身を除く): 181015740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 79, 85, 90, 102, 153, 158, 170, 180, 204, 237, 255, 306, 316, 331, 340, 395, 474, 510, 612, 662, 711, 765, 790, 948, 993, 1020, 1185, 1324, 1343, 1422, 1530, 1580, 1655, 1986, 2370, 2686, 2844, 2979, 3060, 3310, 3555, 3972, 4029, 4740, 4965, 5372, 5627, 5958, 6620, 6715, 7110, 8058, 9930, 11254, 11916, 12087, 13430, 14220, 14895, 16116, 16881, 19860, 20145, 22508, 24174, 26149, 26860, 28135, 29790, 33762, 40290, 48348, 50643, 52298, 56270, 59580, 60435, 67524, 78447, 80580, 84405, 101286, 104596, 112540, 120870, 130745, 156894, 168810, 202572, 235341, 241740, 253215, 261490, 313788, 337620, 392235, 444533, 470682, 506430, 522980, 784470, 889066, 941364, 1012860, 1176705, 1333599, 1568940, 1778132, 2222665, 2353410, 2667198, 4000797, 4445330, 4706820, 5334396, 6667995, 8001594, 8890660, 13335990, 16003188, 20003985, 26671980, 40007970, 80015940]

約数ペア:

[(1, 80015940), (2, 40007970), (3, 26671980), (4, 20003985), (5, 16003188), (6, 13335990), (9, 8890660), (10, 8001594), (12, 6667995), (15, 5334396), (17, 4706820), (18, 4445330), (20, 4000797), (30, 2667198), (34, 2353410), (36, 2222665), (45, 1778132), (51, 1568940), (60, 1333599), (68, 1176705), (79, 1012860), (85, 941364), (90, 889066), (102, 784470), (153, 522980), (158, 506430), (170, 470682), (180, 444533), (204, 392235), (237, 337620), (255, 313788), (306, 261490), (316, 253215), (331, 241740), (340, 235341), (395, 202572), (474, 168810), (510, 156894), (612, 130745), (662, 120870), (711, 112540), (765, 104596), (790, 101286), (948, 84405), (993, 80580), (1020, 78447), (1185, 67524), (1324, 60435), (1343, 59580), (1422, 56270), (1530, 52298), (1580, 50643), (1655, 48348), (1986, 40290), (2370, 33762), (2686, 29790), (2844, 28135), (2979, 26860), (3060, 26149), (3310, 24174), (3555, 22508), (3972, 20145), (4029, 19860), (4740, 16881), (4965, 16116), (5372, 14895), (5627, 14220), (5958, 13430), (6620, 12087), (6715, 11916), (7110, 11254), (8058, 9930)]