258774880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2539}}^1$

素因数の和:2581

約数の個数: 144

約数和(自身を含む): 766175760

約数和(自身を除く): 507400880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2080, 2539, 2548, 2912, 3185, 3640, 3920, 5078, 5096, 6370, 7280, 7840, 10156, 10192, 12695, 12740, 14560, 17773, 20312, 20384, 25390, 25480, 33007, 35546, 40624, 50780, 50960, 66014, 71092, 81248, 88865, 101560, 101920, 124411, 132028, 142184, 165035, 177730, 203120, 231049, 248822, 264056, 284368, 330070, 355460, 406240, 462098, 497644, 528112, 568736, 622055, 660140, 710920, 924196, 995288, 1056224, 1155245, 1244110, 1320280, 1421840, 1617343, 1848392, 1990576, 2310490, 2488220, 2640560, 2843680, 3234686, 3696784, 3981152, 4620980, 4976440, 5281120, 6469372, 7393568, 8086715, 9241960, 9952880, 12938744, 16173430, 18483920, 19905760, 25877488, 32346860, 36967840, 51754976, 64693720, 129387440, 258774880]

約数ペア:

[(1, 258774880), (2, 129387440), (4, 64693720), (5, 51754976), (7, 36967840), (8, 32346860), (10, 25877488), (13, 19905760), (14, 18483920), (16, 16173430), (20, 12938744), (26, 9952880), (28, 9241960), (32, 8086715), (35, 7393568), (40, 6469372), (49, 5281120), (52, 4976440), (56, 4620980), (65, 3981152), (70, 3696784), (80, 3234686), (91, 2843680), (98, 2640560), (104, 2488220), (112, 2310490), (130, 1990576), (140, 1848392), (160, 1617343), (182, 1421840), (196, 1320280), (208, 1244110), (224, 1155245), (245, 1056224), (260, 995288), (280, 924196), (364, 710920), (392, 660140), (416, 622055), (455, 568736), (490, 528112), (520, 497644), (560, 462098), (637, 406240), (728, 355460), (784, 330070), (910, 284368), (980, 264056), (1040, 248822), (1120, 231049), (1274, 203120), (1456, 177730), (1568, 165035), (1820, 142184), (1960, 132028), (2080, 124411), (2539, 101920), (2548, 101560), (2912, 88865), (3185, 81248), (3640, 71092), (3920, 66014), (5078, 50960), (5096, 50780), (6370, 40624), (7280, 35546), (7840, 33007), (10156, 25480), (10192, 25390), (12695, 20384), (12740, 20312), (14560, 17773)]