78921040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 120

約数和(自身を含む): 208986624

約数和(自身を除く): 130065584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 176, 220, 242, 248, 263, 310, 341, 440, 484, 496, 526, 605, 620, 682, 880, 968, 1052, 1210, 1240, 1315, 1364, 1705, 1936, 2104, 2420, 2480, 2630, 2728, 2893, 3410, 3751, 4208, 4840, 5260, 5456, 5786, 6820, 7502, 8153, 9680, 10520, 11572, 13640, 14465, 15004, 16306, 18755, 21040, 23144, 27280, 28930, 30008, 31823, 32612, 37510, 40765, 46288, 57860, 60016, 63646, 65224, 75020, 81530, 89683, 115720, 127292, 130448, 150040, 159115, 163060, 179366, 231440, 254584, 300080, 318230, 326120, 358732, 448415, 509168, 636460, 652240, 717464, 896830, 986513, 1272920, 1434928, 1793660, 1973026, 2545840, 3587320, 3946052, 4932565, 7174640, 7892104, 9865130, 15784208, 19730260, 39460520, 78921040]

約数ペア:

[(1, 78921040), (2, 39460520), (4, 19730260), (5, 15784208), (8, 9865130), (10, 7892104), (11, 7174640), (16, 4932565), (20, 3946052), (22, 3587320), (31, 2545840), (40, 1973026), (44, 1793660), (55, 1434928), (62, 1272920), (80, 986513), (88, 896830), (110, 717464), (121, 652240), (124, 636460), (155, 509168), (176, 448415), (220, 358732), (242, 326120), (248, 318230), (263, 300080), (310, 254584), (341, 231440), (440, 179366), (484, 163060), (496, 159115), (526, 150040), (605, 130448), (620, 127292), (682, 115720), (880, 89683), (968, 81530), (1052, 75020), (1210, 65224), (1240, 63646), (1315, 60016), (1364, 57860), (1705, 46288), (1936, 40765), (2104, 37510), (2420, 32612), (2480, 31823), (2630, 30008), (2728, 28930), (2893, 27280), (3410, 23144), (3751, 21040), (4208, 18755), (4840, 16306), (5260, 15004), (5456, 14465), (5786, 13640), (6820, 11572), (7502, 10520), (8153, 9680)]