28191200

素因数分解:

$2^5\times 5^2\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:420

約数の個数: 72

約数和(自身を含む): 69604920

約数和(自身を除く): 41413720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 131, 160, 200, 262, 269, 400, 524, 538, 655, 800, 1048, 1076, 1310, 1345, 2096, 2152, 2620, 2690, 3275, 4192, 4304, 5240, 5380, 6550, 6725, 8608, 10480, 10760, 13100, 13450, 20960, 21520, 26200, 26900, 35239, 43040, 52400, 53800, 70478, 104800, 107600, 140956, 176195, 215200, 281912, 352390, 563824, 704780, 880975, 1127648, 1409560, 1761950, 2819120, 3523900, 5638240, 7047800, 14095600, 28191200]

約数ペア:

[(1, 28191200), (2, 14095600), (4, 7047800), (5, 5638240), (8, 3523900), (10, 2819120), (16, 1761950), (20, 1409560), (25, 1127648), (32, 880975), (40, 704780), (50, 563824), (80, 352390), (100, 281912), (131, 215200), (160, 176195), (200, 140956), (262, 107600), (269, 104800), (400, 70478), (524, 53800), (538, 52400), (655, 43040), (800, 35239), (1048, 26900), (1076, 26200), (1310, 21520), (1345, 20960), (2096, 13450), (2152, 13100), (2620, 10760), (2690, 10480), (3275, 8608), (4192, 6725), (4304, 6550), (5240, 5380)]