72407440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{541}}^1$

素因数の和:800

約数の個数: 80

約数和(自身を含む): 193559040

約数和(自身を除く): 121151600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 239, 280, 478, 541, 560, 956, 1082, 1195, 1673, 1912, 2164, 2390, 2705, 3346, 3787, 3824, 4328, 4780, 5410, 6692, 7574, 8365, 8656, 9560, 10820, 13384, 15148, 16730, 18935, 19120, 21640, 26768, 30296, 33460, 37870, 43280, 60592, 66920, 75740, 129299, 133840, 151480, 258598, 302960, 517196, 646495, 905093, 1034392, 1292990, 1810186, 2068784, 2585980, 3620372, 4525465, 5171960, 7240744, 9050930, 10343920, 14481488, 18101860, 36203720, 72407440]

約数ペア:

[(1, 72407440), (2, 36203720), (4, 18101860), (5, 14481488), (7, 10343920), (8, 9050930), (10, 7240744), (14, 5171960), (16, 4525465), (20, 3620372), (28, 2585980), (35, 2068784), (40, 1810186), (56, 1292990), (70, 1034392), (80, 905093), (112, 646495), (140, 517196), (239, 302960), (280, 258598), (478, 151480), (541, 133840), (560, 129299), (956, 75740), (1082, 66920), (1195, 60592), (1673, 43280), (1912, 37870), (2164, 33460), (2390, 30296), (2705, 26768), (3346, 21640), (3787, 19120), (3824, 18935), (4328, 16730), (4780, 15148), (5410, 13384), (6692, 10820), (7574, 9560), (8365, 8656)]