18294640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{359}}^1$

素因数の和:399

約数の個数: 120

約数和(自身を含む): 53434080

約数和(自身を除く): 35139440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 359, 364, 392, 455, 490, 520, 560, 637, 718, 728, 784, 910, 980, 1040, 1274, 1436, 1456, 1795, 1820, 1960, 2513, 2548, 2872, 3185, 3590, 3640, 3920, 4667, 5026, 5096, 5744, 6370, 7180, 7280, 9334, 10052, 10192, 12565, 12740, 14360, 17591, 18668, 20104, 23335, 25130, 25480, 28720, 32669, 35182, 37336, 40208, 46670, 50260, 50960, 65338, 70364, 74672, 87955, 93340, 100520, 130676, 140728, 163345, 175910, 186680, 201040, 228683, 261352, 281456, 326690, 351820, 373360, 457366, 522704, 653380, 703640, 914732, 1143415, 1306760, 1407280, 1829464, 2286830, 2613520, 3658928, 4573660, 9147320, 18294640]

約数ペア:

[(1, 18294640), (2, 9147320), (4, 4573660), (5, 3658928), (7, 2613520), (8, 2286830), (10, 1829464), (13, 1407280), (14, 1306760), (16, 1143415), (20, 914732), (26, 703640), (28, 653380), (35, 522704), (40, 457366), (49, 373360), (52, 351820), (56, 326690), (65, 281456), (70, 261352), (80, 228683), (91, 201040), (98, 186680), (104, 175910), (112, 163345), (130, 140728), (140, 130676), (182, 100520), (196, 93340), (208, 87955), (245, 74672), (260, 70364), (280, 65338), (359, 50960), (364, 50260), (392, 46670), (455, 40208), (490, 37336), (520, 35182), (560, 32669), (637, 28720), (718, 25480), (728, 25130), (784, 23335), (910, 20104), (980, 18668), (1040, 17591), (1274, 14360), (1436, 12740), (1456, 12565), (1795, 10192), (1820, 10052), (1960, 9334), (2513, 7280), (2548, 7180), (2872, 6370), (3185, 5744), (3590, 5096), (3640, 5026), (3920, 4667)]