13210780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 31370976

約数和(自身を除く): 18160196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 103, 106, 110, 121, 206, 212, 220, 242, 265, 412, 484, 515, 530, 583, 605, 1030, 1060, 1133, 1166, 1210, 2060, 2266, 2332, 2420, 2915, 4532, 5459, 5665, 5830, 6413, 10918, 11330, 11660, 12463, 12826, 21836, 22660, 24926, 25652, 27295, 32065, 49852, 54590, 60049, 62315, 64130, 109180, 120098, 124630, 128260, 240196, 249260, 300245, 600490, 660539, 1200980, 1321078, 2642156, 3302695, 6605390, 13210780]

約数ペア:

[(1, 13210780), (2, 6605390), (4, 3302695), (5, 2642156), (10, 1321078), (11, 1200980), (20, 660539), (22, 600490), (44, 300245), (53, 249260), (55, 240196), (103, 128260), (106, 124630), (110, 120098), (121, 109180), (206, 64130), (212, 62315), (220, 60049), (242, 54590), (265, 49852), (412, 32065), (484, 27295), (515, 25652), (530, 24926), (583, 22660), (605, 21836), (1030, 12826), (1060, 12463), (1133, 11660), (1166, 11330), (1210, 10918), (2060, 6413), (2266, 5830), (2332, 5665), (2420, 5459), (2915, 4532)]