72784880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5651}}^1$

素因数の和:5694

約数の個数: 80

約数和(自身を含む): 201844224

約数和(自身を除く): 129059344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 5651, 6440, 11302, 12880, 22604, 28255, 39557, 45208, 56510, 79114, 90416, 113020, 129973, 158228, 197785, 226040, 259946, 316456, 395570, 452080, 519892, 632912, 649865, 791140, 909811, 1039784, 1299730, 1582280, 1819622, 2079568, 2599460, 3164560, 3639244, 4549055, 5198920, 7278488, 9098110, 10397840, 14556976, 18196220, 36392440, 72784880]

約数ペア:

[(1, 72784880), (2, 36392440), (4, 18196220), (5, 14556976), (7, 10397840), (8, 9098110), (10, 7278488), (14, 5198920), (16, 4549055), (20, 3639244), (23, 3164560), (28, 2599460), (35, 2079568), (40, 1819622), (46, 1582280), (56, 1299730), (70, 1039784), (80, 909811), (92, 791140), (112, 649865), (115, 632912), (140, 519892), (161, 452080), (184, 395570), (230, 316456), (280, 259946), (322, 226040), (368, 197785), (460, 158228), (560, 129973), (644, 113020), (805, 90416), (920, 79114), (1288, 56510), (1610, 45208), (1840, 39557), (2576, 28255), (3220, 22604), (5651, 12880), (6440, 11302)]