20160921112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{967}}^1\times {\mathrm{1847}}^1$

素因数の和:2920

約数の個数: 64

約数和(自身を含む): 40571435520

約数和(自身を除く): 20410514408

約数列:

[1, 2, 4, 8, 17, 34, 68, 83, 136, 166, 332, 664, 967, 1411, 1847, 1934, 2822, 3694, 3868, 5644, 7388, 7736, 11288, 14776, 16439, 31399, 32878, 62798, 65756, 80261, 125596, 131512, 153301, 160522, 251192, 306602, 321044, 613204, 642088, 1226408, 1364437, 1786049, 2606117, 2728874, 3572098, 5212234, 5457748, 7144196, 10424468, 10915496, 14288392, 20848936, 30362833, 60725666, 121451332, 148242067, 242902664, 296484134, 592968268, 1185936536, 2520115139, 5040230278, 10080460556, 20160921112]

約数ペア:

[(1, 20160921112), (2, 10080460556), (4, 5040230278), (8, 2520115139), (17, 1185936536), (34, 592968268), (68, 296484134), (83, 242902664), (136, 148242067), (166, 121451332), (332, 60725666), (664, 30362833), (967, 20848936), (1411, 14288392), (1847, 10915496), (1934, 10424468), (2822, 7144196), (3694, 5457748), (3868, 5212234), (5644, 3572098), (7388, 2728874), (7736, 2606117), (11288, 1786049), (14776, 1364437), (16439, 1226408), (31399, 642088), (32878, 613204), (62798, 321044), (65756, 306602), (80261, 251192), (125596, 160522), (131512, 153301)]