280808840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:543

約数の個数: 128

約数和(自身を含む): 725034240

約数和(自身を除く): 444225400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 53, 65, 92, 104, 106, 115, 130, 184, 212, 230, 260, 265, 299, 424, 443, 460, 520, 530, 598, 689, 886, 920, 1060, 1196, 1219, 1378, 1495, 1772, 2120, 2215, 2392, 2438, 2756, 2990, 3445, 3544, 4430, 4876, 5512, 5759, 5980, 6095, 6890, 8860, 9752, 10189, 11518, 11960, 12190, 13780, 15847, 17720, 20378, 23036, 23479, 24380, 27560, 28795, 31694, 40756, 46072, 46958, 48760, 50945, 57590, 63388, 79235, 81512, 93916, 101890, 115180, 117395, 126776, 132457, 158470, 187832, 203780, 230360, 234790, 264914, 305227, 316940, 407560, 469580, 529828, 540017, 610454, 633880, 662285, 939160, 1059656, 1080034, 1220908, 1324570, 1526135, 2160068, 2441816, 2649140, 2700085, 3052270, 4320136, 5298280, 5400170, 6104540, 7020221, 10800340, 12209080, 14040442, 21600680, 28080884, 35101105, 56161768, 70202210, 140404420, 280808840]

約数ペア:

[(1, 280808840), (2, 140404420), (4, 70202210), (5, 56161768), (8, 35101105), (10, 28080884), (13, 21600680), (20, 14040442), (23, 12209080), (26, 10800340), (40, 7020221), (46, 6104540), (52, 5400170), (53, 5298280), (65, 4320136), (92, 3052270), (104, 2700085), (106, 2649140), (115, 2441816), (130, 2160068), (184, 1526135), (212, 1324570), (230, 1220908), (260, 1080034), (265, 1059656), (299, 939160), (424, 662285), (443, 633880), (460, 610454), (520, 540017), (530, 529828), (598, 469580), (689, 407560), (886, 316940), (920, 305227), (1060, 264914), (1196, 234790), (1219, 230360), (1378, 203780), (1495, 187832), (1772, 158470), (2120, 132457), (2215, 126776), (2392, 117395), (2438, 115180), (2756, 101890), (2990, 93916), (3445, 81512), (3544, 79235), (4430, 63388), (4876, 57590), (5512, 50945), (5759, 48760), (5980, 46958), (6095, 46072), (6890, 40756), (8860, 31694), (9752, 28795), (10189, 27560), (11518, 24380), (11960, 23479), (12190, 23036), (13780, 20378), (15847, 17720)]