43450000

素因数分解:

$2^4\times 5^5\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 120

約数和(自身を含む): 116242560

約数和(自身を除く): 72792560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 79, 80, 88, 100, 110, 125, 158, 176, 200, 220, 250, 275, 316, 395, 400, 440, 500, 550, 625, 632, 790, 869, 880, 1000, 1100, 1250, 1264, 1375, 1580, 1738, 1975, 2000, 2200, 2500, 2750, 3125, 3160, 3476, 3950, 4345, 4400, 5000, 5500, 6250, 6320, 6875, 6952, 7900, 8690, 9875, 10000, 11000, 12500, 13750, 13904, 15800, 17380, 19750, 21725, 22000, 25000, 27500, 31600, 34375, 34760, 39500, 43450, 49375, 50000, 55000, 68750, 69520, 79000, 86900, 98750, 108625, 110000, 137500, 158000, 173800, 197500, 217250, 246875, 275000, 347600, 395000, 434500, 493750, 543125, 550000, 790000, 869000, 987500, 1086250, 1738000, 1975000, 2172500, 2715625, 3950000, 4345000, 5431250, 8690000, 10862500, 21725000, 43450000]

約数ペア:

[(1, 43450000), (2, 21725000), (4, 10862500), (5, 8690000), (8, 5431250), (10, 4345000), (11, 3950000), (16, 2715625), (20, 2172500), (22, 1975000), (25, 1738000), (40, 1086250), (44, 987500), (50, 869000), (55, 790000), (79, 550000), (80, 543125), (88, 493750), (100, 434500), (110, 395000), (125, 347600), (158, 275000), (176, 246875), (200, 217250), (220, 197500), (250, 173800), (275, 158000), (316, 137500), (395, 110000), (400, 108625), (440, 98750), (500, 86900), (550, 79000), (625, 69520), (632, 68750), (790, 55000), (869, 50000), (880, 49375), (1000, 43450), (1100, 39500), (1250, 34760), (1264, 34375), (1375, 31600), (1580, 27500), (1738, 25000), (1975, 22000), (2000, 21725), (2200, 19750), (2500, 17380), (2750, 15800), (3125, 13904), (3160, 13750), (3476, 12500), (3950, 11000), (4345, 10000), (4400, 9875), (5000, 8690), (5500, 7900), (6250, 6952), (6320, 6875)]