18915260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{547}}^1$

素因数の和:595

約数の個数: 96

約数和(自身を含む): 51555840

約数和(自身を除く): 32640580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 247, 260, 266, 364, 380, 455, 494, 532, 547, 665, 910, 988, 1094, 1235, 1330, 1729, 1820, 2188, 2470, 2660, 2735, 3458, 3829, 4940, 5470, 6916, 7111, 7658, 8645, 10393, 10940, 14222, 15316, 17290, 19145, 20786, 28444, 34580, 35555, 38290, 41572, 49777, 51965, 71110, 72751, 76580, 99554, 103930, 135109, 142220, 145502, 199108, 207860, 248885, 270218, 291004, 363755, 497770, 540436, 675545, 727510, 945763, 995540, 1351090, 1455020, 1891526, 2702180, 3783052, 4728815, 9457630, 18915260]

約数ペア:

[(1, 18915260), (2, 9457630), (4, 4728815), (5, 3783052), (7, 2702180), (10, 1891526), (13, 1455020), (14, 1351090), (19, 995540), (20, 945763), (26, 727510), (28, 675545), (35, 540436), (38, 497770), (52, 363755), (65, 291004), (70, 270218), (76, 248885), (91, 207860), (95, 199108), (130, 145502), (133, 142220), (140, 135109), (182, 103930), (190, 99554), (247, 76580), (260, 72751), (266, 71110), (364, 51965), (380, 49777), (455, 41572), (494, 38290), (532, 35555), (547, 34580), (665, 28444), (910, 20786), (988, 19145), (1094, 17290), (1235, 15316), (1330, 14222), (1729, 10940), (1820, 10393), (2188, 8645), (2470, 7658), (2660, 7111), (2735, 6916), (3458, 5470), (3829, 4940)]