28972240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 76885704

約数和(自身を除く): 47913464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 73, 80, 82, 88, 110, 121, 146, 164, 176, 205, 220, 242, 292, 328, 365, 410, 440, 451, 484, 584, 605, 656, 730, 803, 820, 880, 902, 968, 1168, 1210, 1460, 1606, 1640, 1804, 1936, 2255, 2420, 2920, 2993, 3212, 3280, 3608, 4015, 4510, 4840, 4961, 5840, 5986, 6424, 7216, 8030, 8833, 9020, 9680, 9922, 11972, 12848, 14965, 16060, 17666, 18040, 19844, 23944, 24805, 29930, 32120, 32923, 35332, 36080, 39688, 44165, 47888, 49610, 59860, 64240, 65846, 70664, 79376, 88330, 99220, 119720, 131692, 141328, 164615, 176660, 198440, 239440, 263384, 329230, 353320, 362153, 396880, 526768, 658460, 706640, 724306, 1316920, 1448612, 1810765, 2633840, 2897224, 3621530, 5794448, 7243060, 14486120, 28972240]

約数ペア:

[(1, 28972240), (2, 14486120), (4, 7243060), (5, 5794448), (8, 3621530), (10, 2897224), (11, 2633840), (16, 1810765), (20, 1448612), (22, 1316920), (40, 724306), (41, 706640), (44, 658460), (55, 526768), (73, 396880), (80, 362153), (82, 353320), (88, 329230), (110, 263384), (121, 239440), (146, 198440), (164, 176660), (176, 164615), (205, 141328), (220, 131692), (242, 119720), (292, 99220), (328, 88330), (365, 79376), (410, 70664), (440, 65846), (451, 64240), (484, 59860), (584, 49610), (605, 47888), (656, 44165), (730, 39688), (803, 36080), (820, 35332), (880, 32923), (902, 32120), (968, 29930), (1168, 24805), (1210, 23944), (1460, 19844), (1606, 18040), (1640, 17666), (1804, 16060), (1936, 14965), (2255, 12848), (2420, 11972), (2920, 9922), (2993, 9680), (3212, 9020), (3280, 8833), (3608, 8030), (4015, 7216), (4510, 6424), (4840, 5986), (4961, 5840)]