66700000

素因数分解:

$2^5\times 5^5\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:87

約数の個数: 144

約数和(自身を含む): 177176160

約数和(自身を除く): 110476160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 29, 32, 40, 46, 50, 58, 80, 92, 100, 115, 116, 125, 145, 160, 184, 200, 230, 232, 250, 290, 368, 400, 460, 464, 500, 575, 580, 625, 667, 725, 736, 800, 920, 928, 1000, 1150, 1160, 1250, 1334, 1450, 1840, 2000, 2300, 2320, 2500, 2668, 2875, 2900, 3125, 3335, 3625, 3680, 4000, 4600, 4640, 5000, 5336, 5750, 5800, 6250, 6670, 7250, 9200, 10000, 10672, 11500, 11600, 12500, 13340, 14375, 14500, 16675, 18125, 18400, 20000, 21344, 23000, 23200, 25000, 26680, 28750, 29000, 33350, 36250, 46000, 50000, 53360, 57500, 58000, 66700, 71875, 72500, 83375, 90625, 92000, 100000, 106720, 115000, 116000, 133400, 143750, 145000, 166750, 181250, 230000, 266800, 287500, 290000, 333500, 362500, 416875, 460000, 533600, 575000, 580000, 667000, 725000, 833750, 1150000, 1334000, 1450000, 1667500, 2084375, 2300000, 2668000, 2900000, 3335000, 4168750, 6670000, 8337500, 13340000, 16675000, 33350000, 66700000]

約数ペア:

[(1, 66700000), (2, 33350000), (4, 16675000), (5, 13340000), (8, 8337500), (10, 6670000), (16, 4168750), (20, 3335000), (23, 2900000), (25, 2668000), (29, 2300000), (32, 2084375), (40, 1667500), (46, 1450000), (50, 1334000), (58, 1150000), (80, 833750), (92, 725000), (100, 667000), (115, 580000), (116, 575000), (125, 533600), (145, 460000), (160, 416875), (184, 362500), (200, 333500), (230, 290000), (232, 287500), (250, 266800), (290, 230000), (368, 181250), (400, 166750), (460, 145000), (464, 143750), (500, 133400), (575, 116000), (580, 115000), (625, 106720), (667, 100000), (725, 92000), (736, 90625), (800, 83375), (920, 72500), (928, 71875), (1000, 66700), (1150, 58000), (1160, 57500), (1250, 53360), (1334, 50000), (1450, 46000), (1840, 36250), (2000, 33350), (2300, 29000), (2320, 28750), (2500, 26680), (2668, 25000), (2875, 23200), (2900, 23000), (3125, 21344), (3335, 20000), (3625, 18400), (3680, 18125), (4000, 16675), (4600, 14500), (4640, 14375), (5000, 13340), (5336, 12500), (5750, 11600), (5800, 11500), (6250, 10672), (6670, 10000), (7250, 9200)]