280069240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:565

約数の個数: 128

約数和(自身を含む): 727833600

約数和(自身を除く): 447764360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 47, 55, 58, 88, 94, 110, 116, 145, 188, 220, 232, 235, 290, 319, 376, 440, 467, 470, 517, 580, 638, 934, 940, 1034, 1160, 1276, 1363, 1595, 1868, 1880, 2068, 2335, 2552, 2585, 2726, 3190, 3736, 4136, 4670, 5137, 5170, 5452, 6380, 6815, 9340, 10274, 10340, 10904, 12760, 13543, 13630, 14993, 18680, 20548, 20680, 21949, 25685, 27086, 27260, 29986, 41096, 43898, 51370, 54172, 54520, 59972, 67715, 74965, 87796, 102740, 108344, 109745, 119944, 135430, 148973, 149930, 175592, 205480, 219490, 241439, 270860, 297946, 299860, 438980, 482878, 541720, 595892, 599720, 636521, 744865, 877960, 965756, 1191784, 1207195, 1273042, 1489730, 1931512, 2414390, 2546084, 2979460, 3182605, 4828780, 5092168, 5958920, 6365210, 7001731, 9657560, 12730420, 14003462, 25460840, 28006924, 35008655, 56013848, 70017310, 140034620, 280069240]

約数ペア:

[(1, 280069240), (2, 140034620), (4, 70017310), (5, 56013848), (8, 35008655), (10, 28006924), (11, 25460840), (20, 14003462), (22, 12730420), (29, 9657560), (40, 7001731), (44, 6365210), (47, 5958920), (55, 5092168), (58, 4828780), (88, 3182605), (94, 2979460), (110, 2546084), (116, 2414390), (145, 1931512), (188, 1489730), (220, 1273042), (232, 1207195), (235, 1191784), (290, 965756), (319, 877960), (376, 744865), (440, 636521), (467, 599720), (470, 595892), (517, 541720), (580, 482878), (638, 438980), (934, 299860), (940, 297946), (1034, 270860), (1160, 241439), (1276, 219490), (1363, 205480), (1595, 175592), (1868, 149930), (1880, 148973), (2068, 135430), (2335, 119944), (2552, 109745), (2585, 108344), (2726, 102740), (3190, 87796), (3736, 74965), (4136, 67715), (4670, 59972), (5137, 54520), (5170, 54172), (5452, 51370), (6380, 43898), (6815, 41096), (9340, 29986), (10274, 27260), (10340, 27086), (10904, 25685), (12760, 21949), (13543, 20680), (13630, 20548), (14993, 18680)]