81206360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1523}}^1$

素因数の和:1608

約数の個数: 64

約数和(自身を含む): 193121280

約数和(自身を除く): 111914920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1523, 1720, 2666, 3046, 5332, 6092, 6665, 7615, 10664, 12184, 13330, 15230, 26660, 30460, 47213, 53320, 60920, 65489, 94426, 130978, 188852, 236065, 261956, 327445, 377704, 472130, 523912, 654890, 944260, 1309780, 1888520, 2030159, 2619560, 4060318, 8120636, 10150795, 16241272, 20301590, 40603180, 81206360]

約数ペア:

[(1, 81206360), (2, 40603180), (4, 20301590), (5, 16241272), (8, 10150795), (10, 8120636), (20, 4060318), (31, 2619560), (40, 2030159), (43, 1888520), (62, 1309780), (86, 944260), (124, 654890), (155, 523912), (172, 472130), (215, 377704), (248, 327445), (310, 261956), (344, 236065), (430, 188852), (620, 130978), (860, 94426), (1240, 65489), (1333, 60920), (1523, 53320), (1720, 47213), (2666, 30460), (3046, 26660), (5332, 15230), (6092, 13330), (6665, 12184), (7615, 10664)]