278324540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:691

約数の個数: 96

約数和(自身を含む): 670225920

約数和(自身を除く): 391901380

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 103, 130, 190, 206, 247, 260, 380, 412, 494, 515, 547, 988, 1030, 1094, 1235, 1339, 1957, 2060, 2188, 2470, 2678, 2735, 3914, 4940, 5356, 5470, 6695, 7111, 7828, 9785, 10393, 10940, 13390, 14222, 19570, 20786, 25441, 26780, 28444, 35555, 39140, 41572, 50882, 51965, 56341, 71110, 101764, 103930, 112682, 127205, 135109, 142220, 207860, 225364, 254410, 270218, 281705, 508820, 540436, 563410, 675545, 732433, 1070479, 1126820, 1351090, 1464866, 2140958, 2702180, 2929732, 3662165, 4281916, 5352395, 7324330, 10704790, 13916227, 14648660, 21409580, 27832454, 55664908, 69581135, 139162270, 278324540]

約数ペア:

[(1, 278324540), (2, 139162270), (4, 69581135), (5, 55664908), (10, 27832454), (13, 21409580), (19, 14648660), (20, 13916227), (26, 10704790), (38, 7324330), (52, 5352395), (65, 4281916), (76, 3662165), (95, 2929732), (103, 2702180), (130, 2140958), (190, 1464866), (206, 1351090), (247, 1126820), (260, 1070479), (380, 732433), (412, 675545), (494, 563410), (515, 540436), (547, 508820), (988, 281705), (1030, 270218), (1094, 254410), (1235, 225364), (1339, 207860), (1957, 142220), (2060, 135109), (2188, 127205), (2470, 112682), (2678, 103930), (2735, 101764), (3914, 71110), (4940, 56341), (5356, 51965), (5470, 50882), (6695, 41572), (7111, 39140), (7828, 35555), (9785, 28444), (10393, 26780), (10940, 25441), (13390, 20786), (14222, 19570)]