20773720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1523}}^1$

素因数の和:1576

約数の個数: 64

約数和(自身を含む): 52669440

約数和(自身を除く): 31895720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1523, 1705, 2728, 3046, 3410, 6092, 6820, 7615, 12184, 13640, 15230, 16753, 30460, 33506, 47213, 60920, 67012, 83765, 94426, 134024, 167530, 188852, 236065, 335060, 377704, 472130, 519343, 670120, 944260, 1038686, 1888520, 2077372, 2596715, 4154744, 5193430, 10386860, 20773720]

約数ペア:

[(1, 20773720), (2, 10386860), (4, 5193430), (5, 4154744), (8, 2596715), (10, 2077372), (11, 1888520), (20, 1038686), (22, 944260), (31, 670120), (40, 519343), (44, 472130), (55, 377704), (62, 335060), (88, 236065), (110, 188852), (124, 167530), (155, 134024), (220, 94426), (248, 83765), (310, 67012), (341, 60920), (440, 47213), (620, 33506), (682, 30460), (1240, 16753), (1364, 15230), (1523, 13640), (1705, 12184), (2728, 7615), (3046, 6820), (3410, 6092)]