86997500

素因数分解:

$2^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:153

約数の個数: 120

約数和(自身を含む): 212556960

約数和(自身を除く): 125559460

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 25, 34, 46, 50, 68, 85, 89, 92, 100, 115, 125, 170, 178, 230, 250, 340, 356, 391, 425, 445, 460, 500, 575, 625, 782, 850, 890, 1150, 1250, 1513, 1564, 1700, 1780, 1955, 2047, 2125, 2225, 2300, 2500, 2875, 3026, 3910, 4094, 4250, 4450, 5750, 6052, 7565, 7820, 8188, 8500, 8900, 9775, 10235, 10625, 11125, 11500, 14375, 15130, 19550, 20470, 21250, 22250, 28750, 30260, 34799, 37825, 39100, 40940, 42500, 44500, 48875, 51175, 55625, 57500, 69598, 75650, 97750, 102350, 111250, 139196, 151300, 173995, 189125, 195500, 204700, 222500, 244375, 255875, 347990, 378250, 488750, 511750, 695980, 756500, 869975, 945625, 977500, 1023500, 1279375, 1739950, 1891250, 2558750, 3479900, 3782500, 4349875, 5117500, 8699750, 17399500, 21749375, 43498750, 86997500]

約数ペア:

[(1, 86997500), (2, 43498750), (4, 21749375), (5, 17399500), (10, 8699750), (17, 5117500), (20, 4349875), (23, 3782500), (25, 3479900), (34, 2558750), (46, 1891250), (50, 1739950), (68, 1279375), (85, 1023500), (89, 977500), (92, 945625), (100, 869975), (115, 756500), (125, 695980), (170, 511750), (178, 488750), (230, 378250), (250, 347990), (340, 255875), (356, 244375), (391, 222500), (425, 204700), (445, 195500), (460, 189125), (500, 173995), (575, 151300), (625, 139196), (782, 111250), (850, 102350), (890, 97750), (1150, 75650), (1250, 69598), (1513, 57500), (1564, 55625), (1700, 51175), (1780, 48875), (1955, 44500), (2047, 42500), (2125, 40940), (2225, 39100), (2300, 37825), (2500, 34799), (2875, 30260), (3026, 28750), (3910, 22250), (4094, 21250), (4250, 20470), (4450, 19550), (5750, 15130), (6052, 14375), (7565, 11500), (7820, 11125), (8188, 10625), (8500, 10235), (8900, 9775)]