72090180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:338

約数の個数: 144

約数和(自身を含む): 233513280

約数和(自身を除く): 161423100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 107, 114, 171, 180, 190, 197, 214, 228, 285, 321, 342, 380, 394, 428, 535, 570, 591, 642, 684, 788, 855, 963, 985, 1070, 1140, 1182, 1284, 1605, 1710, 1773, 1926, 1970, 2033, 2140, 2364, 2955, 3210, 3420, 3546, 3743, 3852, 3940, 4066, 4815, 5910, 6099, 6420, 7092, 7486, 8132, 8865, 9630, 10165, 11229, 11820, 12198, 14972, 17730, 18297, 18715, 19260, 20330, 21079, 22458, 24396, 30495, 33687, 35460, 36594, 37430, 40660, 42158, 44916, 56145, 60990, 63237, 67374, 73188, 74860, 84316, 91485, 105395, 112290, 121980, 126474, 134748, 168435, 182970, 189711, 210790, 224580, 252948, 316185, 336870, 365940, 379422, 400501, 421580, 632370, 673740, 758844, 801002, 948555, 1201503, 1264740, 1602004, 1897110, 2002505, 2403006, 3604509, 3794220, 4005010, 4806012, 6007515, 7209018, 8010020, 12015030, 14418036, 18022545, 24030060, 36045090, 72090180]

約数ペア:

[(1, 72090180), (2, 36045090), (3, 24030060), (4, 18022545), (5, 14418036), (6, 12015030), (9, 8010020), (10, 7209018), (12, 6007515), (15, 4806012), (18, 4005010), (19, 3794220), (20, 3604509), (30, 2403006), (36, 2002505), (38, 1897110), (45, 1602004), (57, 1264740), (60, 1201503), (76, 948555), (90, 801002), (95, 758844), (107, 673740), (114, 632370), (171, 421580), (180, 400501), (190, 379422), (197, 365940), (214, 336870), (228, 316185), (285, 252948), (321, 224580), (342, 210790), (380, 189711), (394, 182970), (428, 168435), (535, 134748), (570, 126474), (591, 121980), (642, 112290), (684, 105395), (788, 91485), (855, 84316), (963, 74860), (985, 73188), (1070, 67374), (1140, 63237), (1182, 60990), (1284, 56145), (1605, 44916), (1710, 42158), (1773, 40660), (1926, 37430), (1970, 36594), (2033, 35460), (2140, 33687), (2364, 30495), (2955, 24396), (3210, 22458), (3420, 21079), (3546, 20330), (3743, 19260), (3852, 18715), (3940, 18297), (4066, 17730), (4815, 14972), (5910, 12198), (6099, 11820), (6420, 11229), (7092, 10165), (7486, 9630), (8132, 8865)]