281125000

素因数分解:

$2^3\times 5^6\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:222

約数の個数: 112

約数和(自身を含む): 713662740

約数和(自身を除く): 432537740

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 173, 200, 250, 260, 325, 346, 500, 520, 625, 650, 692, 865, 1000, 1250, 1300, 1384, 1625, 1730, 2249, 2500, 2600, 3125, 3250, 3460, 4325, 4498, 5000, 6250, 6500, 6920, 8125, 8650, 8996, 11245, 12500, 13000, 15625, 16250, 17300, 17992, 21625, 22490, 25000, 31250, 32500, 34600, 40625, 43250, 44980, 56225, 62500, 65000, 81250, 86500, 89960, 108125, 112450, 125000, 162500, 173000, 203125, 216250, 224900, 281125, 325000, 406250, 432500, 449800, 540625, 562250, 812500, 865000, 1081250, 1124500, 1405625, 1625000, 2162500, 2249000, 2703125, 2811250, 4325000, 5406250, 5622500, 7028125, 10812500, 11245000, 14056250, 21625000, 28112500, 35140625, 56225000, 70281250, 140562500, 281125000]

約数ペア:

[(1, 281125000), (2, 140562500), (4, 70281250), (5, 56225000), (8, 35140625), (10, 28112500), (13, 21625000), (20, 14056250), (25, 11245000), (26, 10812500), (40, 7028125), (50, 5622500), (52, 5406250), (65, 4325000), (100, 2811250), (104, 2703125), (125, 2249000), (130, 2162500), (173, 1625000), (200, 1405625), (250, 1124500), (260, 1081250), (325, 865000), (346, 812500), (500, 562250), (520, 540625), (625, 449800), (650, 432500), (692, 406250), (865, 325000), (1000, 281125), (1250, 224900), (1300, 216250), (1384, 203125), (1625, 173000), (1730, 162500), (2249, 125000), (2500, 112450), (2600, 108125), (3125, 89960), (3250, 86500), (3460, 81250), (4325, 65000), (4498, 62500), (5000, 56225), (6250, 44980), (6500, 43250), (6920, 40625), (8125, 34600), (8650, 32500), (8996, 31250), (11245, 25000), (12500, 22490), (13000, 21625), (15625, 17992), (16250, 17300)]