248531840

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:520

約数の個数: 128

約数和(自身を含む): 642453120

約数和(自身を除く): 393921280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 53, 64, 68, 80, 85, 106, 128, 136, 160, 170, 212, 265, 272, 320, 340, 424, 431, 530, 544, 640, 680, 848, 862, 901, 1060, 1088, 1360, 1696, 1724, 1802, 2120, 2155, 2176, 2720, 3392, 3448, 3604, 4240, 4310, 4505, 5440, 6784, 6896, 7208, 7327, 8480, 8620, 9010, 10880, 13792, 14416, 14654, 16960, 17240, 18020, 22843, 27584, 28832, 29308, 33920, 34480, 36040, 36635, 45686, 55168, 57664, 58616, 68960, 72080, 73270, 91372, 114215, 115328, 117232, 137920, 144160, 146540, 182744, 228430, 234464, 275840, 288320, 293080, 365488, 388331, 456860, 468928, 576640, 586160, 730976, 776662, 913720, 937856, 1172320, 1461952, 1553324, 1827440, 1941655, 2344640, 2923904, 3106648, 3654880, 3883310, 4689280, 6213296, 7309760, 7766620, 12426592, 14619520, 15533240, 24853184, 31066480, 49706368, 62132960, 124265920, 248531840]

約数ペア:

[(1, 248531840), (2, 124265920), (4, 62132960), (5, 49706368), (8, 31066480), (10, 24853184), (16, 15533240), (17, 14619520), (20, 12426592), (32, 7766620), (34, 7309760), (40, 6213296), (53, 4689280), (64, 3883310), (68, 3654880), (80, 3106648), (85, 2923904), (106, 2344640), (128, 1941655), (136, 1827440), (160, 1553324), (170, 1461952), (212, 1172320), (265, 937856), (272, 913720), (320, 776662), (340, 730976), (424, 586160), (431, 576640), (530, 468928), (544, 456860), (640, 388331), (680, 365488), (848, 293080), (862, 288320), (901, 275840), (1060, 234464), (1088, 228430), (1360, 182744), (1696, 146540), (1724, 144160), (1802, 137920), (2120, 117232), (2155, 115328), (2176, 114215), (2720, 91372), (3392, 73270), (3448, 72080), (3604, 68960), (4240, 58616), (4310, 57664), (4505, 55168), (5440, 45686), (6784, 36635), (6896, 36040), (7208, 34480), (7327, 33920), (8480, 29308), (8620, 28832), (9010, 27584), (10880, 22843), (13792, 18020), (14416, 17240), (14654, 16960)]