19911722320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{1889}}^1\times {\mathrm{2689}}^1$

素因数の和:4605

約数の個数: 120

約数和(自身を含む): 53901628200

約数和(自身を除く): 33989905880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1889, 1960, 2689, 3778, 3920, 5378, 7556, 9445, 10756, 13223, 13445, 15112, 18823, 18890, 21512, 26446, 26890, 30224, 37646, 37780, 43024, 52892, 53780, 66115, 75292, 75560, 92561, 94115, 105784, 107560, 131761, 132230, 150584, 151120, 185122, 188230, 211568, 215120, 263522, 264460, 301168, 370244, 376460, 462805, 527044, 528920, 658805, 740488, 752920, 925610, 1054088, 1057840, 1317610, 1480976, 1505840, 1851220, 2108176, 2635220, 3702440, 5079521, 5270440, 7404880, 10159042, 10540880, 20318084, 25397605, 35556647, 40636168, 50795210, 71113294, 81272336, 101590420, 142226588, 177783235, 203180840, 248896529, 284453176, 355566470, 406361680, 497793058, 568906352, 711132940, 995586116, 1244482645, 1422265880, 1991172232, 2488965290, 2844531760, 3982344464, 4977930580, 9955861160, 19911722320]

約数ペア:

[(1, 19911722320), (2, 9955861160), (4, 4977930580), (5, 3982344464), (7, 2844531760), (8, 2488965290), (10, 1991172232), (14, 1422265880), (16, 1244482645), (20, 995586116), (28, 711132940), (35, 568906352), (40, 497793058), (49, 406361680), (56, 355566470), (70, 284453176), (80, 248896529), (98, 203180840), (112, 177783235), (140, 142226588), (196, 101590420), (245, 81272336), (280, 71113294), (392, 50795210), (490, 40636168), (560, 35556647), (784, 25397605), (980, 20318084), (1889, 10540880), (1960, 10159042), (2689, 7404880), (3778, 5270440), (3920, 5079521), (5378, 3702440), (7556, 2635220), (9445, 2108176), (10756, 1851220), (13223, 1505840), (13445, 1480976), (15112, 1317610), (18823, 1057840), (18890, 1054088), (21512, 925610), (26446, 752920), (26890, 740488), (30224, 658805), (37646, 528920), (37780, 527044), (43024, 462805), (52892, 376460), (53780, 370244), (66115, 301168), (75292, 264460), (75560, 263522), (92561, 215120), (94115, 211568), (105784, 188230), (107560, 185122), (131761, 151120), (132230, 150584)]