20304800

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1493}}^1$

素因数の和:1530

約数の個数: 72

約数和(自身を含む): 52520076

約数和(自身を除く): 32215276

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 136, 160, 170, 200, 272, 340, 400, 425, 544, 680, 800, 850, 1360, 1493, 1700, 2720, 2986, 3400, 5972, 6800, 7465, 11944, 13600, 14930, 23888, 25381, 29860, 37325, 47776, 50762, 59720, 74650, 101524, 119440, 126905, 149300, 203048, 238880, 253810, 298600, 406096, 507620, 597200, 634525, 812192, 1015240, 1194400, 1269050, 2030480, 2538100, 4060960, 5076200, 10152400, 20304800]

約数ペア:

[(1, 20304800), (2, 10152400), (4, 5076200), (5, 4060960), (8, 2538100), (10, 2030480), (16, 1269050), (17, 1194400), (20, 1015240), (25, 812192), (32, 634525), (34, 597200), (40, 507620), (50, 406096), (68, 298600), (80, 253810), (85, 238880), (100, 203048), (136, 149300), (160, 126905), (170, 119440), (200, 101524), (272, 74650), (340, 59720), (400, 50762), (425, 47776), (544, 37325), (680, 29860), (800, 25381), (850, 23888), (1360, 14930), (1493, 13600), (1700, 11944), (2720, 7465), (2986, 6800), (3400, 5972)]