156625820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 359704800

約数和(自身を除く): 203078980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 169, 260, 298, 311, 338, 596, 622, 676, 745, 845, 1244, 1490, 1555, 1690, 1937, 2980, 3110, 3380, 3874, 4043, 6220, 7748, 8086, 9685, 16172, 19370, 20215, 25181, 38740, 40430, 46339, 50362, 52559, 80860, 92678, 100724, 105118, 125905, 185356, 210236, 231695, 251810, 262795, 463390, 503620, 525590, 602407, 926780, 1051180, 1204814, 2409628, 3012035, 6024070, 7831291, 12048140, 15662582, 31325164, 39156455, 78312910, 156625820]

約数ペア:

[(1, 156625820), (2, 78312910), (4, 39156455), (5, 31325164), (10, 15662582), (13, 12048140), (20, 7831291), (26, 6024070), (52, 3012035), (65, 2409628), (130, 1204814), (149, 1051180), (169, 926780), (260, 602407), (298, 525590), (311, 503620), (338, 463390), (596, 262795), (622, 251810), (676, 231695), (745, 210236), (845, 185356), (1244, 125905), (1490, 105118), (1555, 100724), (1690, 92678), (1937, 80860), (2980, 52559), (3110, 50362), (3380, 46339), (3874, 40430), (4043, 38740), (6220, 25181), (7748, 20215), (8086, 19370), (9685, 16172)]