29900000

素因数分解:

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

素因数の和:71

約数の個数: 144

約数和(自身を含む): 82682208

約数和(自身を除く): 52782208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 25, 26, 32, 40, 46, 50, 52, 65, 80, 92, 100, 104, 115, 125, 130, 160, 184, 200, 208, 230, 250, 260, 299, 325, 368, 400, 416, 460, 500, 520, 575, 598, 625, 650, 736, 800, 920, 1000, 1040, 1150, 1196, 1250, 1300, 1495, 1625, 1840, 2000, 2080, 2300, 2392, 2500, 2600, 2875, 2990, 3125, 3250, 3680, 4000, 4600, 4784, 5000, 5200, 5750, 5980, 6250, 6500, 7475, 8125, 9200, 9568, 10000, 10400, 11500, 11960, 12500, 13000, 14375, 14950, 16250, 18400, 20000, 23000, 23920, 25000, 26000, 28750, 29900, 32500, 37375, 40625, 46000, 47840, 50000, 52000, 57500, 59800, 65000, 71875, 74750, 81250, 92000, 100000, 115000, 119600, 130000, 143750, 149500, 162500, 186875, 230000, 239200, 260000, 287500, 299000, 325000, 373750, 460000, 575000, 598000, 650000, 747500, 934375, 1150000, 1196000, 1300000, 1495000, 1868750, 2300000, 2990000, 3737500, 5980000, 7475000, 14950000, 29900000]

約数ペア:

[(1, 29900000), (2, 14950000), (4, 7475000), (5, 5980000), (8, 3737500), (10, 2990000), (13, 2300000), (16, 1868750), (20, 1495000), (23, 1300000), (25, 1196000), (26, 1150000), (32, 934375), (40, 747500), (46, 650000), (50, 598000), (52, 575000), (65, 460000), (80, 373750), (92, 325000), (100, 299000), (104, 287500), (115, 260000), (125, 239200), (130, 230000), (160, 186875), (184, 162500), (200, 149500), (208, 143750), (230, 130000), (250, 119600), (260, 115000), (299, 100000), (325, 92000), (368, 81250), (400, 74750), (416, 71875), (460, 65000), (500, 59800), (520, 57500), (575, 52000), (598, 50000), (625, 47840), (650, 46000), (736, 40625), (800, 37375), (920, 32500), (1000, 29900), (1040, 28750), (1150, 26000), (1196, 25000), (1250, 23920), (1300, 23000), (1495, 20000), (1625, 18400), (1840, 16250), (2000, 14950), (2080, 14375), (2300, 13000), (2392, 12500), (2500, 11960), (2600, 11500), (2875, 10400), (2990, 10000), (3125, 9568), (3250, 9200), (3680, 8125), (4000, 7475), (4600, 6500), (4784, 6250), (5000, 5980), (5200, 5750)]