291001520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1777}}^1$

素因数の和:1902

約数の個数: 80

約数和(自身を含む): 714329280

約数和(自身を除く): 423327760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 356, 368, 445, 460, 712, 890, 920, 1424, 1777, 1780, 1840, 2047, 3554, 3560, 4094, 7108, 7120, 8188, 8885, 10235, 14216, 16376, 17770, 20470, 28432, 32752, 35540, 40871, 40940, 71080, 81742, 81880, 142160, 158153, 163484, 163760, 204355, 316306, 326968, 408710, 632612, 653936, 790765, 817420, 1265224, 1581530, 1634840, 2530448, 3163060, 3269680, 3637519, 6326120, 7275038, 12652240, 14550076, 18187595, 29100152, 36375190, 58200304, 72750380, 145500760, 291001520]

約数ペア:

[(1, 291001520), (2, 145500760), (4, 72750380), (5, 58200304), (8, 36375190), (10, 29100152), (16, 18187595), (20, 14550076), (23, 12652240), (40, 7275038), (46, 6326120), (80, 3637519), (89, 3269680), (92, 3163060), (115, 2530448), (178, 1634840), (184, 1581530), (230, 1265224), (356, 817420), (368, 790765), (445, 653936), (460, 632612), (712, 408710), (890, 326968), (920, 316306), (1424, 204355), (1777, 163760), (1780, 163484), (1840, 158153), (2047, 142160), (3554, 81880), (3560, 81742), (4094, 71080), (7108, 40940), (7120, 40871), (8188, 35540), (8885, 32752), (10235, 28432), (14216, 20470), (16376, 17770)]